255156556016 has 20 divisors (see below), whose sum is σ = 495611093592. Its totient is φ = 127256918976.

The previous prime is 255156556007. The next prime is 255156556049. The reversal of 255156556016 is 610655651552.

It is a happy number.

It is a super-2 number, since 2×255156556016² (a number of 24 digits) contains 22 as substring.

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, 20078390 + ... + 20091093.

Almost surely, 2^255156556016 is an apocalyptic number.

It is an amenable number.

255156556016 is a deficient number, since it is larger than the sum of its proper divisors (240454537576).

255156556016 is a wasteful number, since it uses less digits than its factorization.

255156556016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40169888 (or 40169882 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 47.

The spelling of 255156556016 in words is "two hundred fifty-five billion, one hundred fifty-six million, five hundred fifty-six thousand, sixteen".