516546063542656 has 64 divisors (see below), whose sum is σ = 1176068624532480. Its totient is φ = 221376145310208.

The previous prime is 516546063542647. The next prime is 516546063542657. The reversal of 516546063542656 is 656245360645615.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×516546063542656² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516546063542657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331713585 + ... + 333267151.

It is an arithmetic number, because the mean of its divisors is an integer number (18376072258320).

Almost surely, 2^{516546063542656} is an apocalyptic number.

516546063542656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

516546063542656 is an abundant number, since it is smaller than the sum of its proper divisors (659522560989824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516546063542656 is a wasteful number, since it uses less digits than its factorization.

516546063542656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924671 (or 1924659 counting only the distinct ones).

The product of its (nonzero) digits is 466560000, while the sum is 64.

The spelling of 516546063542656 in words is "five hundred sixteen trillion, five hundred forty-six billion, sixty-three million, five hundred forty-two thousand, six hundred fifty-six".