61163369568 has 180 divisors, whose sum is σ = 209248331292. Its totient is φ = 17475212160.

The previous prime is 61163369507. The next prime is 61163369569. The reversal of 61163369568 is 86596336116.

61163369568 is a `hidden beast` number, since 6 + 1 + 16 + 3 + 3 + 69 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61163369569) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 113778 + ... + 367793.

Almost surely, 2^61163369568 is an apocalyptic number.

It is an amenable number.

61163369568 is an abundant number, since it is smaller than the sum of its proper divisors (148084961724).

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

61163369568 is a wasteful number, since it uses less digits than its factorization.

61163369568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481607 (or 481583 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 61163369568 in words is "sixty-one billion, one hundred sixty-three million, three hundred sixty-nine thousand, five hundred sixty-eight".