31662266226613 has 4 divisors (see below), whose sum is σ = 34540654065408. Its totient is φ = 28783878387820.

The previous prime is 31662266226587. The next prime is 31662266226623.

31662266226613 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31662266226613 - 2⁵ = 31662266226581 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 (31662266226623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1439193919381 + ... + 1439193919402.

It is an arithmetic number, because the mean of its divisors is an integer number (8635163516352).

Almost surely, 2^{31662266226613} is an apocalyptic number.

It is an amenable number.

31662266226613 is a deficient number, since it is larger than the sum of its proper divisors (2878387838795).

31662266226613 is a wasteful number, since it uses less digits than its factorization.

31662266226613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878387838794.

The product of its digits is 6718464, while the sum is 52.

The spelling of 31662266226613 in words is "thirty-one trillion, six hundred sixty-two billion, two hundred sixty-six million, two hundred twenty-six thousand, six hundred thirteen".