61922660 has 24 divisors (see below), whose sum is σ = 131066880. Its totient is φ = 24573024.

The previous prime is 61922639. The next prime is 61922689. The reversal of 61922660 is 6622916.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9650 + ... + 14729.

It is an arithmetic number, because the mean of its divisors is an integer number (5461120).

Almost surely, 2^61922660 is an apocalyptic number.

It is an amenable number.

61922660 is an abundant number, since it is smaller than the sum of its proper divisors (69144220).

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

61922660 is a wasteful number, since it uses less digits than its factorization.

61922660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24515 (or 24513 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 61922660 is about 7869.0952465960. The cubic root of 61922660 is about 395.6245208040.

The spelling of 61922660 in words is "sixty-one million, nine hundred twenty-two thousand, six hundred sixty".