116521145020 has 96 divisors (see below), whose sum is σ = 292443475968. Its totient is φ = 38130124032.

The previous prime is 116521144991. The next prime is 116521145021. The reversal of 116521145020 is 20541125611.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 116521145020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116521145021) 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, 1451782 + ... + 1529938.

It is an arithmetic number, because the mean of its divisors is an integer number (3046286208).

Almost surely, 2^116521145020 is an apocalyptic number.

116521145020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 116521145020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146221737984).

116521145020 is an abundant number, since it is smaller than the sum of its proper divisors (175922330948).

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

116521145020 is a wasteful number, since it uses less digits than its factorization.

116521145020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78659 (or 78657 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 116521145020 in words is "one hundred sixteen billion, five hundred twenty-one million, one hundred forty-five thousand, twenty".