16657526100161 has 4 divisors (see below), whose sum is σ = 16779113882052. Its totient is φ = 16535938318272.

The previous prime is 16657526100151. The next prime is 16657526100167. The reversal of 16657526100161 is 16100162575661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14374949027761 + 2282577072400 = 3791431^2 + 1510820^2 .

It is a cyclic number.

It is not a de Polignac number, because 16657526100161 - 2¹⁸ = 16657525838017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16657526100167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60793890740 + ... + 60793891013.

It is an arithmetic number, because the mean of its divisors is an integer number (4194778470513).

Almost surely, 2^{16657526100161} is an apocalyptic number.

It is an amenable number.

16657526100161 is a deficient number, since it is larger than the sum of its proper divisors (121587781891).

16657526100161 is a wasteful number, since it uses less digits than its factorization.

16657526100161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121587781890.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 16657526100161 in words is "sixteen trillion, six hundred fifty-seven billion, five hundred twenty-six million, one hundred thousand, one hundred sixty-one".