256624135231060 has 24 divisors (see below), whose sum is σ = 538930439197416. Its totient is φ = 102645891194880.

The previous prime is 256624135231039. The next prime is 256624135231117. The reversal of 256624135231060 is 60132531426652.

It can be written as a sum of positive squares in 4 ways, for example, as 115414025720464 + 141210109510596 = 10743092^2 + 11883186^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 256624135231060.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234621837 + ... + 235713076.

It is an arithmetic number, because the mean of its divisors is an integer number (22455434966559).

Almost surely, 2^{256624135231060} is an apocalyptic number.

256624135231060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256624135231060 is an abundant number, since it is smaller than the sum of its proper divisors (282306303966356).

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

256624135231060 is a wasteful number, since it uses less digits than its factorization.

256624135231060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470362203 (or 470362201 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 256624135231060 in words is "two hundred fifty-six trillion, six hundred twenty-four billion, one hundred thirty-five million, two hundred thirty-one thousand, sixty".