31660079999 has 8 divisors (see below), whose sum is σ = 33563184480. Its totient is φ = 29761502976.

The previous prime is 31660079977. The next prime is 31660080017. The reversal of 31660079999 is 99997006613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31660079999 - 2¹² = 31660075903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31660070999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117454 + ... + 1145435.

It is an arithmetic number, because the mean of its divisors is an integer number (4195398060).

Almost surely, 2^31660079999 is an apocalyptic number.

31660079999 is a deficient number, since it is larger than the sum of its proper divisors (1903104481).

31660079999 is a wasteful number, since it uses less digits than its factorization.

31660079999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263729.

The product of its (nonzero) digits is 4960116, while the sum is 59.

The spelling of 31660079999 in words is "thirty-one billion, six hundred sixty million, seventy-nine thousand, nine hundred ninety-nine".