261413302455 has 32 divisors (see below), whose sum is σ = 470617497600. Its totient is φ = 137655606816.

The previous prime is 261413302399. The next prime is 261413302477. The reversal of 261413302455 is 554203314162.

261413302455 is a `hidden beast` number, since 2 + 614 + 1 + 3 + 30 + 2 + 4 + 5 + 5 = 666.

It is not a de Polignac number, because 261413302455 - 2¹⁹ = 261412778167 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12244999 + ... + 12266328.

It is an arithmetic number, because the mean of its divisors is an integer number (14706796800).

Almost surely, 2^261413302455 is an apocalyptic number.

261413302455 is a deficient number, since it is larger than the sum of its proper divisors (209204195145).

261413302455 is a wasteful number, since it uses less digits than its factorization.

261413302455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24511420 (or 24511414 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 261413302455 in words is "two hundred sixty-one billion, four hundred thirteen million, three hundred two thousand, four hundred fifty-five".