61265500631605 has 16 divisors (see below), whose sum is σ = 73624355164800. Its totient is φ = 48941901443520.

The previous prime is 61265500631581. The next prime is 61265500631623. The reversal of 61265500631605 is 50613600556216.

It is a de Polignac number, because none of the positive numbers 2^k-61265500631605 is a prime.

It is a congruent number.

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, 137461770 + ... + 137906740.

It is an arithmetic number, because the mean of its divisors is an integer number (4601522197800).

Almost surely, 2^{61265500631605} is an apocalyptic number.

It is an amenable number.

61265500631605 is a deficient number, since it is larger than the sum of its proper divisors (12358854533195).

61265500631605 is a wasteful number, since it uses less digits than its factorization.

61265500631605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484524.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 61265500631605 in words is "sixty-one trillion, two hundred sixty-five billion, five hundred million, six hundred thirty-one thousand, six hundred five".