1556064421260 has 48 divisors (see below), whose sum is σ = 4357216281600. Its totient is φ = 414928045504.

The previous prime is 1556064421259. The next prime is 1556064421271. The reversal of 1556064421260 is 621244606551.

It is a super-2 number, since 2×1556064421260² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430411 + ... + 1815869.

It is an arithmetic number, because the mean of its divisors is an integer number (90775339200).

Almost surely, 2^{1556064421260} is an apocalyptic number.

1556064421260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1556064421260 is an abundant number, since it is smaller than the sum of its proper divisors (2801151860340).

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

1556064421260 is a wasteful number, since it uses less digits than its factorization.

1556064421260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404190 (or 1404188 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 1556064421260 in words is "one trillion, five hundred fifty-six billion, sixty-four million, four hundred twenty-one thousand, two hundred sixty".