31420466156144 has 40 divisors (see below), whose sum is σ = 65669096252592. Its totient is φ = 14477624179200.

The previous prime is 31420466156113. The next prime is 31420466156171. The reversal of 31420466156144 is 44165166402413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125548814 + ... + 125798829.

Almost surely, 2^{31420466156144} is an apocalyptic number.

It is an amenable number.

31420466156144 is an abundant number, since it is smaller than the sum of its proper divisors (34248630096448).

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

31420466156144 is a wasteful number, since it uses less digits than its factorization.

31420466156144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251348265 (or 251348259 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 31420466156144 in words is "thirty-one trillion, four hundred twenty billion, four hundred sixty-six million, one hundred fifty-six thousand, one hundred forty-four".