51732299666 has 16 divisors (see below), whose sum is σ = 82600365600. Its totient is φ = 24229437408.

The previous prime is 51732299659. The next prime is 51732299783. The reversal of 51732299666 is 66699223715.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 7644800 + ... + 7651563.

It is an arithmetic number, because the mean of its divisors is an integer number (5162522850).

Almost surely, 2^51732299666 is an apocalyptic number.

51732299666 is a deficient number, since it is larger than the sum of its proper divisors (30868065934).

51732299666 is a wasteful number, since it uses less digits than its factorization.

51732299666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15296473.

The product of its digits is 7348320, while the sum is 56.

The spelling of 51732299666 in words is "fifty-one billion, seven hundred thirty-two million, two hundred ninety-nine thousand, six hundred sixty-six".