31662225532 has 18 divisors (see below), whose sum is σ = 64455245232. Its totient is φ = 13569525144.

The previous prime is 31662225487. The next prime is 31662225557. The reversal of 31662225532 is 23552226613.

It is a junction number, because it is equal to n+sod(n) for n = 31662225491 and 31662225500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80770788 + ... + 80771179.

Almost surely, 2^31662225532 is an apocalyptic number.

It is an amenable number.

31662225532 is an abundant number, since it is smaller than the sum of its proper divisors (32793019700).

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

31662225532 is a wasteful number, since it uses less digits than its factorization.

31662225532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161541985 (or 161541976 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The spelling of 31662225532 in words is "thirty-one billion, six hundred sixty-two million, two hundred twenty-five thousand, five hundred thirty-two".