61332260565 has 16 divisors (see below), whose sum is σ = 98303489856. Its totient is φ = 32653248000.

The previous prime is 61332260503. The next prime is 61332260593. The reversal of 61332260565 is 56506223316.

It is not a de Polignac number, because 61332260565 - 2³³ = 52742325973 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3571836 + ... + 3588965.

It is an arithmetic number, because the mean of its divisors is an integer number (6143968116).

Almost surely, 2^61332260565 is an apocalyptic number.

It is an amenable number.

61332260565 is a deficient number, since it is larger than the sum of its proper divisors (36971229291).

61332260565 is a wasteful number, since it uses less digits than its factorization.

61332260565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7161380.

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 61332260565 in words is "sixty-one billion, three hundred thirty-two million, two hundred sixty thousand, five hundred sixty-five".