31616848120 has 256 divisors, whose sum is σ = 85558394880. Its totient is φ = 10363852800.

The previous prime is 31616848097. The next prime is 31616848129. The reversal of 31616848120 is 2184861613.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31616848129) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 51576934 + ... + 51577546.

It is an arithmetic number, because the mean of its divisors is an integer number (334212480).

Almost surely, 2^31616848120 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 31616848120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42779197440).

31616848120 is an abundant number, since it is smaller than the sum of its proper divisors (53941546760).

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

31616848120 is a wasteful number, since it uses less digits than its factorization.

31616848120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 31616848120 in words is "thirty-one billion, six hundred sixteen million, eight hundred forty-eight thousand, one hundred twenty".