164253618408 has 64 divisors (see below), whose sum is σ = 460071587520. Its totient is φ = 48428582400.

The previous prime is 164253618383. The next prime is 164253618427. The reversal of 164253618408 is 804816352461.

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, 8397973 + ... + 8417508.

It is an arithmetic number, because the mean of its divisors is an integer number (7188618555).

Almost surely, 2^164253618408 is an apocalyptic number.

It is an amenable number.

164253618408 is an abundant number, since it is smaller than the sum of its proper divisors (295817969112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164253618408 is a wasteful number, since it uses less digits than its factorization.

164253618408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16815538 (or 16815534 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 164253618408 in words is "one hundred sixty-four billion, two hundred fifty-three million, six hundred eighteen thousand, four hundred eight".