261652532360 has 64 divisors (see below), whose sum is σ = 592009387200. Its totient is φ = 104077552896.

The previous prime is 261652532291. The next prime is 261652532399. The reversal of 261652532360 is 63235256162.

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, 5151971 + ... + 5202509.

It is an arithmetic number, because the mean of its divisors is an integer number (9250146675).

Almost surely, 2^261652532360 is an apocalyptic number.

261652532360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261652532360 is an abundant number, since it is smaller than the sum of its proper divisors (330356854840).

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

261652532360 is a wasteful number, since it uses less digits than its factorization.

261652532360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51270 (or 51266 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 261652532360 in words is "two hundred sixty-one billion, six hundred fifty-two million, five hundred thirty-two thousand, three hundred sixty".