516264128765 has 16 divisors (see below), whose sum is σ = 772384775040. Its totient is φ = 321826989120.

The previous prime is 516264128761. The next prime is 516264128777. The reversal of 516264128765 is 567821462615.

It is not a de Polignac number, because 516264128765 - 2² = 516264128761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516264128761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670472510 + ... + 670473279.

It is an arithmetic number, because the mean of its divisors is an integer number (48274048440).

Almost surely, 2^516264128765 is an apocalyptic number.

516264128765 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

516264128765 is a deficient number, since it is larger than the sum of its proper divisors (256120646275).

516264128765 is a wasteful number, since it uses less digits than its factorization.

516264128765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340945812.

The product of its digits is 4838400, while the sum is 53.

The spelling of 516264128765 in words is "five hundred sixteen billion, two hundred sixty-four million, one hundred twenty-eight thousand, seven hundred sixty-five".