2555222056464 has 160 divisors (see below), whose sum is σ = 8713912559616. Its totient is φ = 624653199360.

The previous prime is 2555222056441. The next prime is 2555222056477. The reversal of 2555222056464 is 4646502225552.

It is a super-2 number, since 2×2555222056464² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20270932 + ... + 20396595.

Almost surely, 2^{2555222056464} is an apocalyptic number.

2555222056464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2555222056464 is an abundant number, since it is smaller than the sum of its proper divisors (6158690503152).

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

2555222056464 is a wasteful number, since it uses less digits than its factorization.

2555222056464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40667573 (or 40667567 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 2555222056464 in words is "two trillion, five hundred fifty-five billion, two hundred twenty-two million, fifty-six thousand, four hundred sixty-four".