61369168 has 30 divisors (see below), whose sum is σ = 138317226. Its totient is φ = 26300736.

The previous prime is 61369141. The next prime is 61369211. The reversal of 61369168 is 86196316.

It can be written as a sum of positive squares in only one way, i.e., 34245904 + 27123264 = 5852^2 + 5208^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61369168.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38355 + ... + 39922.

Almost surely, 2^61369168 is an apocalyptic number.

It is an amenable number.

61369168 is an abundant number, since it is smaller than the sum of its proper divisors (76948058).

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

61369168 is a wasteful number, since it uses less digits than its factorization.

61369168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78299 (or 78286 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 61369168 is about 7833.8475859567. The cubic root of 61369168 is about 394.4422357933.

The spelling of 61369168 in words is "sixty-one million, three hundred sixty-nine thousand, one hundred sixty-eight".