5921659434916 has 27 divisors (see below), whose sum is σ = 10833259449313. Its totient is φ = 2832044454800.

The previous prime is 5921659434913. The next prime is 5921659434917. The reversal of 5921659434916 is 6194349561295.

The square root of 5921659434916 is 2433446.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5921211689316 + 447745600 = 2433354^2 + 21160^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5921659434913) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 111912066 + ... + 111964966.

Almost surely, 2^{5921659434916} is an apocalyptic number.

5921659434916 is the 2433446-th square number.

It is an amenable number.

5921659434916 is a deficient number, since it is larger than the sum of its proper divisors (4911600014397).

5921659434916 is an frugal number, since it uses more digits than its factorization.

5921659434916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105852 (or 52926 counting only the distinct ones).

The product of its digits is 62985600, while the sum is 64.

Multiplying 5921659434916 by its sum of digits (64), we get a square (378986203834624 = 19467568²).

The spelling of 5921659434916 in words is "five trillion, nine hundred twenty-one billion, six hundred fifty-nine million, four hundred thirty-four thousand, nine hundred sixteen".