516454454615 has 16 divisors (see below), whose sum is σ = 705480869376. Its totient is φ = 359272663200.

The previous prime is 516454454567. The next prime is 516454454653.

516454454615 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 516454454615 - 2¹⁴ = 516454438231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204130931 + ... + 204133460.

It is an arithmetic number, because the mean of its divisors is an integer number (44092554336).

Almost surely, 2^516454454615 is an apocalyptic number.

516454454615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

516454454615 is a deficient number, since it is larger than the sum of its proper divisors (189026414761).

516454454615 is a wasteful number, since it uses less digits than its factorization.

516454454615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408264430.

The product of its digits is 5760000, while the sum is 50.

The spelling of 516454454615 in words is "five hundred sixteen billion, four hundred fifty-four million, four hundred fifty-four thousand, six hundred fifteen".