31500533114164 has 48 divisors (see below), whose sum is σ = 58751254388736. Its totient is φ = 14743762220000.

The previous prime is 31500533114143. The next prime is 31500533114173. The reversal of 31500533114164 is 46141133500513.

It is a super-3 number, since 3×31500533114164³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55545039 + ... + 56109289.

It is an arithmetic number, because the mean of its divisors is an integer number (1223984466432).

Almost surely, 2^{31500533114164} is an apocalyptic number.

It is an amenable number.

31500533114164 is a deficient number, since it is larger than the sum of its proper divisors (27250721274572).

31500533114164 is a wasteful number, since it uses less digits than its factorization.

31500533114164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577236 (or 577234 counting only the distinct ones).

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

Adding to 31500533114164 its reverse (46141133500513), we get a palindrome (77641666614677).

The spelling of 31500533114164 in words is "thirty-one trillion, five hundred billion, five hundred thirty-three million, one hundred fourteen thousand, one hundred sixty-four".