60661506605 has 32 divisors (see below), whose sum is σ = 83617256448. Its totient is φ = 41384851200.

The previous prime is 60661506599. The next prime is 60661506613. The reversal of 60661506605 is 50660516606.

It is not a de Polignac number, because 60661506605 - 2¹⁶ = 60661441069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5621315 + ... + 5632095.

It is an arithmetic number, because the mean of its divisors is an integer number (2613039264).

Almost surely, 2^60661506605 is an apocalyptic number.

It is an amenable number.

60661506605 is a deficient number, since it is larger than the sum of its proper divisors (22955749843).

60661506605 is a wasteful number, since it uses less digits than its factorization.

60661506605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11597.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 60661506605 in words is "sixty billion, six hundred sixty-one million, five hundred six thousand, six hundred five".