261674360177160 has 96 divisors (see below), whose sum is σ = 913190114108160. Its totient is φ = 59811282324864.

The previous prime is 261674360177137. The next prime is 261674360177201. The reversal of 261674360177160 is 61771063476162.

261674360177160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 261674360177160.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22251215224 + ... + 22251226983.

It is an arithmetic number, because the mean of its divisors is an integer number (9512397021960).

Almost surely, 2^{261674360177160} is an apocalyptic number.

261674360177160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261674360177160 is an abundant number, since it is smaller than the sum of its proper divisors (651515753931000).

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

261674360177160 is a wasteful number, since it uses less digits than its factorization.

261674360177160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44502442235 (or 44502442224 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 57.

The spelling of 261674360177160 in words is "two hundred sixty-one trillion, six hundred seventy-four billion, three hundred sixty million, one hundred seventy-seven thousand, one hundred sixty".