20601615892 has 144 divisors (see below), whose sum is σ = 44600976000. Its totient is φ = 8198910720.

The previous prime is 20601615877. The next prime is 20601615907. The reversal of 20601615892 is 29851610602.

It is an interprime number because it is at equal distance from previous prime (20601615877) and next prime (20601615907).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103525609 + ... + 103525807.

It is an arithmetic number, because the mean of its divisors is an integer number (309729000).

Almost surely, 2^20601615892 is an apocalyptic number.

20601615892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20601615892 is an abundant number, since it is smaller than the sum of its proper divisors (23999360108).

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

20601615892 is a wasteful number, since it uses less digits than its factorization.

20601615892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 20601615892 in words is "twenty billion, six hundred one million, six hundred fifteen thousand, eight hundred ninety-two".