516463451656 has 16 divisors (see below), whose sum is σ = 968400554940. Its totient is φ = 258223303680.

The previous prime is 516463451641. The next prime is 516463451671. The reversal of 516463451656 is 656154364615.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (516463451641) and next prime (516463451671).

It can be written as a sum of positive squares in 2 ways, for example, as 461945871556 + 54517580100 = 679666^2 + 233490^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788241 + ... + 1286176.

Almost surely, 2^516463451656 is an apocalyptic number.

It is an amenable number.

516463451656 is a deficient number, since it is larger than the sum of its proper divisors (451937103284).

516463451656 is a wasteful number, since it uses less digits than its factorization.

516463451656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105544 (or 2105540 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 52.

The spelling of 516463451656 in words is "five hundred sixteen billion, four hundred sixty-three million, four hundred fifty-one thousand, six hundred fifty-six".