15001166601612 has 36 divisors (see below), whose sum is σ = 39142828984896. Its totient is φ = 4839086000160.

The previous prime is 15001166601587. The next prime is 15001166601613. The reversal of 15001166601612 is 21610666110051.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×15001166601612² (a number of 27 digits) contains 22 as substring.

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 (15001166601613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6720951663 + ... + 6720953894.

It is an arithmetic number, because the mean of its divisors is an integer number (1087300805136).

Almost surely, 2^{15001166601612} is an apocalyptic number.

15001166601612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15001166601612 is an abundant number, since it is smaller than the sum of its proper divisors (24141662383284).

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

15001166601612 is a wasteful number, since it uses less digits than its factorization.

15001166601612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13441905598 (or 13441905593 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 15001166601612 in words is "fifteen trillion, one billion, one hundred sixty-six million, six hundred one thousand, six hundred twelve".