164772554 has 16 divisors (see below), whose sum is σ = 249395328. Its totient is φ = 81644112.

The previous prime is 164772527. The next prime is 164772557. The reversal of 164772554 is 455277461.

164772554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (164772557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162152 + ... + 163164.

It is an arithmetic number, because the mean of its divisors is an integer number (15587208).

Almost surely, 2^164772554 is an apocalyptic number.

164772554 is a deficient number, since it is larger than the sum of its proper divisors (84622774).

164772554 is a wasteful number, since it uses less digits than its factorization.

164772554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669.

The product of its digits is 235200, while the sum is 41.

The square root of 164772554 is about 12836.3762020284. The cubic root of 164772554 is about 548.2285196960.

The spelling of 164772554 in words is "one hundred sixty-four million, seven hundred seventy-two thousand, five hundred fifty-four".