20116747512 has 96 divisors (see below), whose sum is σ = 55459404000. Its totient is φ = 6586110720.

The previous prime is 20116747489. The next prime is 20116747517. The reversal of 20116747512 is 21574761102.

20116747512 is a `hidden beast` number, since 20 + 1 + 167 + 475 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116747517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1367814 + ... + 1382442.

It is an arithmetic number, because the mean of its divisors is an integer number (577702125).

Almost surely, 2^20116747512 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 20116747512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27729702000).

20116747512 is an abundant number, since it is smaller than the sum of its proper divisors (35342656488).

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

20116747512 is a wasteful number, since it uses less digits than its factorization.

20116747512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14981 (or 14974 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 20116747512 in words is "twenty billion, one hundred sixteen million, seven hundred forty-seven thousand, five hundred twelve".