164635384762540 has 48 divisors (see below), whose sum is σ = 363949646457600. Its totient is φ = 62384923645632.

The previous prime is 164635384762507. The next prime is 164635384762637. The reversal of 164635384762540 is 45267483536461.

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, 3814344 + ... + 18542383.

It is an arithmetic number, because the mean of its divisors is an integer number (7582284301200).

Almost surely, 2^{164635384762540} is an apocalyptic number.

164635384762540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164635384762540 is an abundant number, since it is smaller than the sum of its proper divisors (199314261695060).

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

164635384762540 is a wasteful number, since it uses less digits than its factorization.

164635384762540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22376134 (or 22376132 counting only the distinct ones).

The product of its (nonzero) digits is 348364800, while the sum is 64.

The spelling of 164635384762540 in words is "one hundred sixty-four trillion, six hundred thirty-five billion, three hundred eighty-four million, seven hundred sixty-two thousand, five hundred forty".