20160634752 has 128 divisors (see below), whose sum is σ = 59786035200. Its totient is φ = 6688120320.

The previous prime is 20160634733. The next prime is 20160634801. The reversal of 20160634752 is 25743606102.

20160634752 is a `hidden beast` number, since 2 + 0 + 1 + 606 + 3 + 47 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 715393 + ... + 743039.

It is an arithmetic number, because the mean of its divisors is an integer number (467078400).

Almost surely, 2^20160634752 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 20160634752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29893017600).

20160634752 is an abundant number, since it is smaller than the sum of its proper divisors (39625400448).

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

20160634752 is a wasteful number, since it uses less digits than its factorization.

20160634752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27881 (or 27863 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 20160634752 in words is "twenty billion, one hundred sixty million, six hundred thirty-four thousand, seven hundred fifty-two".