255161364646 has 8 divisors (see below), whose sum is σ = 405256285080. Its totient is φ = 120075936288.

The previous prime is 255161364617. The next prime is 255161364677. The reversal of 255161364646 is 646463161552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 255161364646.

It is a congruent number.

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, 3752372976 + ... + 3752373043.

It is an arithmetic number, because the mean of its divisors is an integer number (50657035635).

Almost surely, 2^255161364646 is an apocalyptic number.

255161364646 is a deficient number, since it is larger than the sum of its proper divisors (150094920434).

255161364646 is a wasteful number, since it uses less digits than its factorization.

255161364646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504746038.

The product of its digits is 3110400, while the sum is 49.

The spelling of 255161364646 in words is "two hundred fifty-five billion, one hundred sixty-one million, three hundred sixty-four thousand, six hundred forty-six".