164631655771 has 16 divisors (see below), whose sum is σ = 187422294528. Its totient is φ = 143146115200.

The previous prime is 164631655759. The next prime is 164631655787. The reversal of 164631655771 is 177556136461.

It is not a de Polignac number, because 164631655771 - 2²⁹ = 164094784859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164631655271) 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, 4614915 + ... + 4650451.

It is an arithmetic number, because the mean of its divisors is an integer number (11713893408).

Almost surely, 2^164631655771 is an apocalyptic number.

164631655771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

164631655771 is a deficient number, since it is larger than the sum of its proper divisors (22790638757).

164631655771 is a wasteful number, since it uses less digits than its factorization.

164631655771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53882.

The product of its digits is 3175200, while the sum is 52.

The spelling of 164631655771 in words is "one hundred sixty-four billion, six hundred thirty-one million, six hundred fifty-five thousand, seven hundred seventy-one".