61605760 has 32 divisors (see below), whose sum is σ = 147277800. Its totient is φ = 24642048.

The previous prime is 61605737. The next prime is 61605779. The reversal of 61605760 is 6750616.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47490 + ... + 48769.

Almost surely, 2^61605760 is an apocalyptic number.

It is an amenable number.

61605760 is an abundant number, since it is smaller than the sum of its proper divisors (85672040).

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

61605760 is an equidigital number, since it uses as much as digits as its factorization.

61605760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96278 (or 96266 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 61605760 is about 7848.9336855397. The cubic root of 61605760 is about 394.9484737574.

The spelling of 61605760 in words is "sixty-one million, six hundred five thousand, seven hundred sixty".