23166645155 has 16 divisors (see below), whose sum is σ = 28148290560. Its totient is φ = 18302111328.

The previous prime is 23166645133. The next prime is 23166645251. The reversal of 23166645155 is 55154666132.

It is a cyclic number.

It is not a de Polignac number, because 23166645155 - 2²² = 23162450851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122234 + ... + 247536.

It is an arithmetic number, because the mean of its divisors is an integer number (1759268160).

Almost surely, 2^23166645155 is an apocalyptic number.

23166645155 is a deficient number, since it is larger than the sum of its proper divisors (4981645405).

23166645155 is a wasteful number, since it uses less digits than its factorization.

23166645155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125770.

The product of its digits is 648000, while the sum is 44.

The spelling of 23166645155 in words is "twenty-three billion, one hundred sixty-six million, six hundred forty-five thousand, one hundred fifty-five".