12555645270 has 32 divisors (see below), whose sum is σ = 34438341888. Its totient is φ = 2869861728.

The previous prime is 12555645269. The next prime is 12555645281. The reversal of 12555645270 is 7254655521.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 29894184 + ... + 29894603.

It is an arithmetic number, because the mean of its divisors is an integer number (1076198184).

Almost surely, 2^12555645270 is an apocalyptic number.

12555645270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12555645270 is an abundant number, since it is smaller than the sum of its proper divisors (21882696618).

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

12555645270 is a wasteful number, since it uses less digits than its factorization.

12555645270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59788804.

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 12555645270 in words is "twelve billion, five hundred fifty-five million, six hundred forty-five thousand, two hundred seventy".