66515500562 has 32 divisors (see below), whose sum is σ = 118722651264. Its totient is φ = 27355420800.

The previous prime is 66515500553. The next prime is 66515500607. The reversal of 66515500562 is 26500551566.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914828 + ... + 984855.

It is an arithmetic number, because the mean of its divisors is an integer number (3710082852).

Almost surely, 2^66515500562 is an apocalyptic number.

66515500562 is a deficient number, since it is larger than the sum of its proper divisors (52207150702).

66515500562 is a wasteful number, since it uses less digits than its factorization.

66515500562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899794.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 66515500562 in words is "sixty-six billion, five hundred fifteen million, five hundred thousand, five hundred sixty-two".