61164983955 has 16 divisors (see below), whose sum is σ = 99468303264. Its totient is φ = 32086548480.

The previous prime is 61164983909. The next prime is 61164983983. The reversal of 61164983955 is 55938946116.

It is not a de Polignac number, because 61164983955 - 2⁸ = 61164983699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61164983895 and 61164983904.

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, 33422574 + ... + 33424403.

It is an arithmetic number, because the mean of its divisors is an integer number (6216768954).

Almost surely, 2^61164983955 is an apocalyptic number.

61164983955 is a deficient number, since it is larger than the sum of its proper divisors (38303319309).

61164983955 is a wasteful number, since it uses less digits than its factorization.

61164983955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66847046.

The product of its digits is 6998400, while the sum is 57.

The spelling of 61164983955 in words is "sixty-one billion, one hundred sixty-four million, nine hundred eighty-three thousand, nine hundred fifty-five".