164534274140 has 24 divisors (see below), whose sum is σ = 357436527840. Its totient is φ = 63544271168.

The previous prime is 164534274097. The next prime is 164534274173. The reversal of 164534274140 is 41472435461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141839312 + ... + 141840471.

It is an arithmetic number, because the mean of its divisors is an integer number (14893188660).

Almost surely, 2^164534274140 is an apocalyptic number.

164534274140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164534274140 is an abundant number, since it is smaller than the sum of its proper divisors (192902253700).

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

164534274140 is a wasteful number, since it uses less digits than its factorization.

164534274140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283679821 (or 283679819 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 164534274140 in words is "one hundred sixty-four billion, five hundred thirty-four million, two hundred seventy-four thousand, one hundred forty".