642532163415 has 32 divisors (see below), whose sum is σ = 1085173977600. Its totient is φ = 323743466880.

The previous prime is 642532163369. The next prime is 642532163423. The reversal of 642532163415 is 514361235246.

It is not a de Polignac number, because 642532163415 - 2²⁶ = 642465054551 is a prime.

It is a congruent number.

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, 3037656 + ... + 3242285.

It is an arithmetic number, because the mean of its divisors is an integer number (33911686800).

Almost surely, 2^642532163415 is an apocalyptic number.

642532163415 is a deficient number, since it is larger than the sum of its proper divisors (442641814185).

642532163415 is a wasteful number, since it uses less digits than its factorization.

642532163415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6280327.

The product of its digits is 518400, while the sum is 42.

The spelling of 642532163415 in words is "six hundred forty-two billion, five hundred thirty-two million, one hundred sixty-three thousand, four hundred fifteen".