32166006136621 has 16 divisors (see below), whose sum is σ = 37660825238400. Its totient is φ = 27461018256000.

The previous prime is 32166006136603. The next prime is 32166006136717. The reversal of 32166006136621 is 12663160066123.

It is not a de Polignac number, because 32166006136621 - 2³⁵ = 32131646398253 is a prime.

It is a super-2 number, since 2×32166006136621² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32166006136601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186723556 + ... + 186895741.

It is an arithmetic number, because the mean of its divisors is an integer number (2353801577400).

Almost surely, 2^{32166006136621} is an apocalyptic number.

It is an amenable number.

32166006136621 is a deficient number, since it is larger than the sum of its proper divisors (5494819101779).

32166006136621 is an equidigital number, since it uses as much as digits as its factorization.

32166006136621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373619569 (or 373619555 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 32166006136621 in words is "thirty-two trillion, one hundred sixty-six billion, six million, one hundred thirty-six thousand, six hundred twenty-one".