21160745614 has 32 divisors (see below), whose sum is σ = 35121703680. Its totient is φ = 9510855552.

The previous prime is 21160745537. The next prime is 21160745647. The reversal of 21160745614 is 41654706112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514297 + ... + 553915.

It is an arithmetic number, because the mean of its divisors is an integer number (1097553240).

Almost surely, 2^21160745614 is an apocalyptic number.

21160745614 is a deficient number, since it is larger than the sum of its proper divisors (13960958066).

21160745614 is a wasteful number, since it uses less digits than its factorization.

21160745614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40344.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 21160745614 in words is "twenty-one billion, one hundred sixty million, seven hundred forty-five thousand, six hundred fourteen".