66562930560 has 256 divisors, whose sum is σ = 243269314560. Its totient is φ = 15164817408.

The previous prime is 66562930529. The next prime is 66562930571. The reversal of 66562930560 is 6503926566.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4198809 + ... + 4214631.

It is an arithmetic number, because the mean of its divisors is an integer number (950270760).

Almost surely, 2^66562930560 is an apocalyptic number.

66562930560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66562930560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121634657280).

66562930560 is an abundant number, since it is smaller than the sum of its proper divisors (176706384000).

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

66562930560 is a wasteful number, since it uses less digits than its factorization.

66562930560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16165 (or 16153 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 48.

The spelling of 66562930560 in words is "sixty-six billion, five hundred sixty-two million, nine hundred thirty thousand, five hundred sixty".