61605515662 has 8 divisors (see below), whose sum is σ = 92596479192. Its totient is φ = 30740022600.

The previous prime is 61605515641. The next prime is 61605515677. The reversal of 61605515662 is 26651550616.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 31366389 + ... + 31368352.

It is an arithmetic number, because the mean of its divisors is an integer number (11574559899).

Almost surely, 2^61605515662 is an apocalyptic number.

61605515662 is a deficient number, since it is larger than the sum of its proper divisors (30990963530).

61605515662 is a wasteful number, since it uses less digits than its factorization.

61605515662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62735234.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 61605515662 in words is "sixty-one billion, six hundred five million, five hundred fifteen thousand, six hundred sixty-two".