31004522016 has 192 divisors, whose sum is σ = 89616844800. Its totient is φ = 9327891456.

The previous prime is 31004522011. The next prime is 31004522051. The reversal of 31004522016 is 61022540013.

It is a super-2 number, since 2×31004522016² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (31004522011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10547875 + ... + 10550813.

It is an arithmetic number, because the mean of its divisors is an integer number (466754400).

Almost surely, 2^31004522016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31004522016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44808422400).

31004522016 is an abundant number, since it is smaller than the sum of its proper divisors (58612322784).

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

31004522016 is a wasteful number, since it uses less digits than its factorization.

31004522016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151 (or 3143 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 31004522016 in words is "thirty-one billion, four million, five hundred twenty-two thousand, sixteen".