6615974795166 has 96 divisors (see below), whose sum is σ = 15769431025920. Its totient is φ = 2004531273360.

The previous prime is 6615974795161. The next prime is 6615974795179.

6615974795166 is a `hidden beast` number, since 6 + 6 + 1 + 5 + 97 + 479 + 5 + 1 + 66 = 666.

6615974795166 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6615974795166² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6615974795094 and 6615974795103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615974795161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190760215 + ... + 190794893.

It is an arithmetic number, because the mean of its divisors is an integer number (164264906520).

Almost surely, 2^{6615974795166} is an apocalyptic number.

6615974795166 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6615974795166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7884715512960).

6615974795166 is an abundant number, since it is smaller than the sum of its proper divisors (9153456230754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6615974795166 is a wasteful number, since it uses less digits than its factorization.

6615974795166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42683 (or 42658 counting only the distinct ones).

The product of its digits is 514382400, while the sum is 72.

The spelling of 6615974795166 in words is "six trillion, six hundred fifteen billion, nine hundred seventy-four million, seven hundred ninety-five thousand, one hundred sixty-six".