31664240332036 has 48 divisors (see below), whose sum is σ = 62816965825600. Its totient is φ = 13844813818752.

The previous prime is 31664240332001. The next prime is 31664240332079. The reversal of 31664240332036 is 63023304246613.

It is a junction number, because it is equal to n+sod(n) for n = 31664240331983 and 31664240332001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53193346 + ... + 53785318.

Almost surely, 2^{31664240332036} is an apocalyptic number.

It is an amenable number.

31664240332036 is a deficient number, since it is larger than the sum of its proper divisors (31152725493564).

31664240332036 is a wasteful number, since it uses less digits than its factorization.

31664240332036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646148 (or 646146 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 43.

Adding to 31664240332036 its reverse (63023304246613), we get a palindrome (94687544578649).

The spelling of 31664240332036 in words is "thirty-one trillion, six hundred sixty-four billion, two hundred forty million, three hundred thirty-two thousand, thirty-six".