645267152532096 has 192 divisors, whose sum is σ = 2004367141296000. Its totient is φ = 198642961262592.

The previous prime is 645267152532043. The next prime is 645267152532139. The reversal of 645267152532096 is 690235251762546.

645267152532096 is a `hidden beast` number, since 6 + 4 + 5 + 2 + 6 + 7 + 1 + 5 + 2 + 532 + 0 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419117476 + ... + 420654243.

It is an arithmetic number, because the mean of its divisors is an integer number (10439412194250).

Almost surely, 2^{645267152532096} is an apocalyptic number.

It is an amenable number.

645267152532096 is an abundant number, since it is smaller than the sum of its proper divisors (1359099988763904).

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

645267152532096 is a wasteful number, since it uses less digits than its factorization.

645267152532096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839771791 (or 839771776 counting only the distinct ones).

The product of its (nonzero) digits is 163296000, while the sum is 63.

The spelling of 645267152532096 in words is "six hundred forty-five trillion, two hundred sixty-seven billion, one hundred fifty-two million, five hundred thirty-two thousand, ninety-six".