331666136 has 16 divisors (see below), whose sum is σ = 625002000. Its totient is φ = 164998944.

The previous prime is 331666087. The next prime is 331666151. The reversal of 331666136 is 631666133.

331666136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×331666136² = 220004851538340992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331666096 and 331666105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102575 + ... + 105758.

It is an arithmetic number, because the mean of its divisors is an integer number (39062625).

Almost surely, 2^331666136 is an apocalyptic number.

It is an amenable number.

331666136 is a deficient number, since it is larger than the sum of its proper divisors (293335864).

331666136 is a wasteful number, since it uses less digits than its factorization.

331666136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208538 (or 208534 counting only the distinct ones).

The product of its digits is 34992, while the sum is 35.

The square root of 331666136 is about 18211.7032701502. The cubic root of 331666136 is about 692.2033716797.

The spelling of 331666136 in words is "three hundred thirty-one million, six hundred sixty-six thousand, one hundred thirty-six".