21160524015064 has 32 divisors (see below), whose sum is σ = 45674958005280. Its totient is φ = 9002600411904.

The previous prime is 21160524015017. The next prime is 21160524015077. The reversal of 21160524015064 is 46051042506112.

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, 1379067147 + ... + 1379082490.

It is an arithmetic number, because the mean of its divisors is an integer number (1427342437665).

Almost surely, 2^{21160524015064} is an apocalyptic number.

It is an amenable number.

21160524015064 is an abundant number, since it is smaller than the sum of its proper divisors (24514433990216).

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

21160524015064 is a wasteful number, since it uses less digits than its factorization.

21160524015064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758149787 (or 2758149783 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 21160524015064 in words is "twenty-one trillion, one hundred sixty billion, five hundred twenty-four million, fifteen thousand, sixty-four".