516364253691 has 48 divisors (see below), whose sum is σ = 819979039488. Its totient is φ = 287102439360.

The previous prime is 516364253689. The next prime is 516364253707. The reversal of 516364253691 is 196352463615.

It is not a de Polignac number, because 516364253691 - 2¹ = 516364253689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516364253621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 433546 + ... + 1104848.

It is an arithmetic number, because the mean of its divisors is an integer number (17082896656).

Almost surely, 2^516364253691 is an apocalyptic number.

516364253691 is a deficient number, since it is larger than the sum of its proper divisors (303614785797).

516364253691 is a wasteful number, since it uses less digits than its factorization.

516364253691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671504 (or 671493 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 51.

The spelling of 516364253691 in words is "five hundred sixteen billion, three hundred sixty-four million, two hundred fifty-three thousand, six hundred ninety-one".