61108992 has 180 divisors, whose sum is σ = 208741456. Its totient is φ = 17418240.

The previous prime is 61108981. The next prime is 61109021. The reversal of 61108992 is 29980116.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 144942 + ... + 145362.

Almost surely, 2^61108992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61108992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104370728).

61108992 is an abundant number, since it is smaller than the sum of its proper divisors (147632464).

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

61108992 is an equidigital number, since it uses as much as digits as its factorization.

61108992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 61108992 is about 7817.2240597286. The cubic root of 61108992 is about 393.8840305620.

The spelling of 61108992 in words is "sixty-one million, one hundred eight thousand, nine hundred ninety-two".