61133519118 has 32 divisors (see below), whose sum is σ = 142024481280. Its totient is φ = 17180379360.

The previous prime is 61133519113. The next prime is 61133519143. The reversal of 61133519118 is 81191533116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61133519113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11928258 + ... + 11933381.

It is an arithmetic number, because the mean of its divisors is an integer number (4438265040).

Almost surely, 2^61133519118 is an apocalyptic number.

61133519118 is an abundant number, since it is smaller than the sum of its proper divisors (80890962162).

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

61133519118 is a wasteful number, since it uses less digits than its factorization.

61133519118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23861712.

The product of its digits is 19440, while the sum is 39.

The spelling of 61133519118 in words is "sixty-one billion, one hundred thirty-three million, five hundred nineteen thousand, one hundred eighteen".