661560062 has 16 divisors (see below), whose sum is σ = 1026293760. Its totient is φ = 319640568.

The previous prime is 661560047. The next prime is 661560071. The reversal of 661560062 is 260065166.

It is a congruent number.

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, 37118 + ... + 51969.

It is an arithmetic number, because the mean of its divisors is an integer number (64143360).

Almost surely, 2^661560062 is an apocalyptic number.

661560062 is a deficient number, since it is larger than the sum of its proper divisors (364733698).

661560062 is a wasteful number, since it uses less digits than its factorization.

661560062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89215.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 661560062 is about 25720.8099017119. The cubic root of 661560062 is about 871.3442301578.

The spelling of 661560062 in words is "six hundred sixty-one million, five hundred sixty thousand, sixty-two".