20160240636 has 24 divisors (see below), whose sum is σ = 49807653840. Its totient is φ = 6324781312.

The previous prime is 20160240599. The next prime is 20160240637. The reversal of 20160240636 is 63604206102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20160240637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49412151 + ... + 49412558.

It is an arithmetic number, because the mean of its divisors is an integer number (2075318910).

Almost surely, 2^20160240636 is an apocalyptic number.

It is an amenable number.

20160240636 is an abundant number, since it is smaller than the sum of its proper divisors (29647413204).

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

20160240636 is a wasteful number, since it uses less digits than its factorization.

20160240636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98824733 (or 98824731 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 20160240636 its reverse (63604206102), we get a palindrome (83764446738).

The spelling of 20160240636 in words is "twenty billion, one hundred sixty million, two hundred forty thousand, six hundred thirty-six".