516161618878 has 32 divisors (see below), whose sum is σ = 784558222560. Its totient is φ = 254660889600.

The previous prime is 516161618849. The next prime is 516161618933. The reversal of 516161618878 is 878816161615.

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, 98746501 + ... + 98751727.

It is an arithmetic number, because the mean of its divisors is an integer number (24517444455).

Almost surely, 2^516161618878 is an apocalyptic number.

516161618878 is a deficient number, since it is larger than the sum of its proper divisors (268396603682).

516161618878 is a wasteful number, since it uses less digits than its factorization.

516161618878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892.

The product of its digits is 3870720, while the sum is 58.

The spelling of 516161618878 in words is "five hundred sixteen billion, one hundred sixty-one million, six hundred eighteen thousand, eight hundred seventy-eight".