164026603825 has 24 divisors (see below), whose sum is σ = 233082597632. Its totient is φ = 112168869120.

The previous prime is 164026603817. The next prime is 164026603837. The reversal of 164026603825 is 528306620461.

164026603825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164026603825 - 2³ = 164026603817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1212744 + ... + 1341193.

Almost surely, 2^164026603825 is an apocalyptic number.

It is an amenable number.

164026603825 is a deficient number, since it is larger than the sum of its proper divisors (69055993807).

164026603825 is a wasteful number, since it uses less digits than its factorization.

164026603825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554321 (or 2554316 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 164026603825 in words is "one hundred sixty-four billion, twenty-six million, six hundred three thousand, eight hundred twenty-five".