61610065 has 48 divisors (see below), whose sum is σ = 88879680. Its totient is φ = 40602240.

The previous prime is 61610053. The next prime is 61610071. The reversal of 61610065 is 56001616.

It is not a de Polignac number, because 61610065 - 2⁷ = 61609937 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 575742 + ... + 575848.

It is an arithmetic number, because the mean of its divisors is an integer number (1851660).

Almost surely, 2^61610065 is an apocalyptic number.

It is an amenable number.

61610065 is a deficient number, since it is larger than the sum of its proper divisors (27269615).

61610065 is a wasteful number, since it uses less digits than its factorization.

61610065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 61610065 is about 7849.2079218224. The cubic root of 61610065 is about 394.9576731872.

The spelling of 61610065 in words is "sixty-one million, six hundred ten thousand, sixty-five".