1556480808099 has 96 divisors (see below), whose sum is σ = 2867265838080. Its totient is φ = 829996675200.

The previous prime is 1556480807989. The next prime is 1556480808107. The reversal of 1556480808099 is 9908080846551.

1556480808099 is a `hidden beast` number, since 15 + 56 + 480 + 8 + 0 + 8 + 0 + 99 = 666.

It is a Cunningham number, because it is equal to 1247590²-1.

It is not a de Polignac number, because 1556480808099 - 2³⁶ = 1487761331363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1556480828099) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 623794 + ... + 1871384.

It is an arithmetic number, because the mean of its divisors is an integer number (29867352480).

Almost surely, 2^{1556480808099} is an apocalyptic number.

1556480808099 is a deficient number, since it is larger than the sum of its proper divisors (1310785029981).

1556480808099 is a wasteful number, since it uses less digits than its factorization.

1556480808099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247678 (or 1247665 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 63.

The spelling of 1556480808099 in words is "one trillion, five hundred fifty-six billion, four hundred eighty million, eight hundred eight thousand, ninety-nine".