31154166040 has 64 divisors (see below), whose sum is σ = 70373849760. Its totient is φ = 12412538880.

The previous prime is 31154165971. The next prime is 31154166073. The reversal of 31154166040 is 4066145113.

It is a junction number, because it is equal to n+sod(n) for n = 31154165993 and 31154166011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13216542 + ... + 13218898.

Almost surely, 2^31154166040 is an apocalyptic number.

It is an amenable number.

31154166040 is an abundant number, since it is smaller than the sum of its proper divisors (39219683720).

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

31154166040 is a wasteful number, since it uses less digits than its factorization.

31154166040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532 (or 3528 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 31154166040 in words is "thirty-one billion, one hundred fifty-four million, one hundred sixty-six thousand, forty".