15166500006600 has 72 divisors (see below), whose sum is σ = 50934162528210. Its totient is φ = 4044400001280.

The previous prime is 15166500006557. The next prime is 15166500006601. The reversal of 15166500006600 is 660000566151.

It can be written as a sum of positive squares in 3 ways, for example, as 12070385268516 + 3096114738084 = 3474246^2 + 1759578^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (15166500006601) 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 17 ways as a sum of consecutive naturals, for example, 4212914869 + ... + 4212918468.

Almost surely, 2^{15166500006600} is an apocalyptic number.

15166500006600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15166500006600 is an abundant number, since it is smaller than the sum of its proper divisors (35767662521610).

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

15166500006600 is a wasteful number, since it uses less digits than its factorization.

15166500006600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425833359 (or 8425833347 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 15166500006600 in words is "fifteen trillion, one hundred sixty-six billion, five hundred million, six thousand, six hundred".