12556810254835 has 16 divisors (see below), whose sum is σ = 18786292745472. Its totient is φ = 7827621976800.

The previous prime is 12556810254809. The next prime is 12556810254841. The reversal of 12556810254835 is 53845201865521.

It is not a de Polignac number, because 12556810254835 - 2¹⁵ = 12556810222067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16307545401 + ... + 16307546170.

It is an arithmetic number, because the mean of its divisors is an integer number (1174143296592).

Almost surely, 2^{12556810254835} is an apocalyptic number.

12556810254835 is a deficient number, since it is larger than the sum of its proper divisors (6229482490637).

12556810254835 is a wasteful number, since it uses less digits than its factorization.

12556810254835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32615091594.

The product of its (nonzero) digits is 11520000, while the sum is 55.

The spelling of 12556810254835 in words is "twelve trillion, five hundred fifty-six billion, eight hundred ten million, two hundred fifty-four thousand, eight hundred thirty-five".