64785032148144 has 160 divisors (see below), whose sum is σ = 213510804148224. Its totient is φ = 16435948919040.

The previous prime is 64785032148131. The next prime is 64785032148307. The reversal of 64785032148144 is 44184123058746.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203659884 + ... + 203977739.

Almost surely, 2^{64785032148144} is an apocalyptic number.

It is an amenable number.

64785032148144 is an abundant number, since it is smaller than the sum of its proper divisors (148725772000080).

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

64785032148144 is a wasteful number, since it uses less digits than its factorization.

64785032148144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407637695 (or 407637689 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 57.

The spelling of 64785032148144 in words is "sixty-four trillion, seven hundred eighty-five billion, thirty-two million, one hundred forty-eight thousand, one hundred forty-four".