1666015063050 has 192 divisors, whose sum is σ = 4563398923776. Its totient is φ = 399645792000.

The previous prime is 1666015063043. The next prime is 1666015063051. The reversal of 1666015063050 is 503605106661.

It is a super-3 number, since 3×1666015063050³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1666015063051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37123125 + ... + 37167975.

It is an arithmetic number, because the mean of its divisors is an integer number (23767702728).

Almost surely, 2^{1666015063050} is an apocalyptic number.

1666015063050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1666015063050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2281699461888).

1666015063050 is an abundant number, since it is smaller than the sum of its proper divisors (2897383860726).

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

1666015063050 is a wasteful number, since it uses less digits than its factorization.

1666015063050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45365 (or 45360 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 1666015063050 in words is "one trillion, six hundred sixty-six billion, fifteen million, sixty-three thousand, fifty".