660279899622 has 32 divisors (see below), whose sum is σ = 1523057184000. Its totient is φ = 186920651808.

The previous prime is 660279899621. The next prime is 660279899623. The reversal of 660279899622 is 226998972066.

It is an interprime number because it is at equal distance from previous prime (660279899621) and next prime (660279899623).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660279899621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72109872 + ... + 72119027.

It is an arithmetic number, because the mean of its divisors is an integer number (47595537000).

Almost surely, 2^660279899622 is an apocalyptic number.

660279899622 is an abundant number, since it is smaller than the sum of its proper divisors (862777284378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660279899622 is a wasteful number, since it uses less digits than its factorization.

660279899622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144229020.

The product of its (nonzero) digits is 70543872, while the sum is 66.

The spelling of 660279899622 in words is "six hundred sixty billion, two hundred seventy-nine million, eight hundred ninety-nine thousand, six hundred twenty-two".