261612402656132 has 12 divisors (see below), whose sum is σ = 499441859616336. Its totient is φ = 118914728480040.

The previous prime is 261612402656107. The next prime is 261612402656149. The reversal of 261612402656132 is 231656204216162.

261612402656132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2972868211958 + ... + 2972868212045.

It is an arithmetic number, because the mean of its divisors is an integer number (41620154968028).

Almost surely, 2^{261612402656132} is an apocalyptic number.

261612402656132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

261612402656132 is a deficient number, since it is larger than the sum of its proper divisors (237829456960204).

261612402656132 is a wasteful number, since it uses less digits than its factorization.

261612402656132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5945736424018 (or 5945736424016 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 261612402656132 in words is "two hundred sixty-one trillion, six hundred twelve billion, four hundred two million, six hundred fifty-six thousand, one hundred thirty-two".