31665654001 has 8 divisors (see below), whose sum is σ = 31772508264. Its totient is φ = 31558844160.

The previous prime is 31665653969. The next prime is 31665654089. The reversal of 31665654001 is 10045656613.

It can be written as a sum of positive squares in 4 ways, for example, as 10286827776 + 21378826225 = 101424^2 + 146215^2 .

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 31665654001 - 2⁵ = 31665653969 is a prime.

It is a super-2 number, since 2×31665654001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31665652001) 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, 2046771 + ... + 2062183.

It is an arithmetic number, because the mean of its divisors is an integer number (3971563533).

Almost surely, 2^31665654001 is an apocalyptic number.

It is an amenable number.

31665654001 is a deficient number, since it is larger than the sum of its proper divisors (106854263).

31665654001 is a wasteful number, since it uses less digits than its factorization.

31665654001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22211.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 31665654001 in words is "thirty-one billion, six hundred sixty-five million, six hundred fifty-four thousand, one".