20158460616 has 64 divisors (see below), whose sum is σ = 58571827200. Its totient is φ = 5661937728.

The previous prime is 20158460591. The next prime is 20158460627. The reversal of 20158460616 is 61606485102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1006960 + ... + 1026783.

It is an arithmetic number, because the mean of its divisors is an integer number (915184800).

Almost surely, 2^20158460616 is an apocalyptic number.

It is an amenable number.

20158460616 is an abundant number, since it is smaller than the sum of its proper divisors (38413366584).

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

20158460616 is a wasteful number, since it uses less digits than its factorization.

20158460616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033818 (or 2033814 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 20158460616 in words is "twenty billion, one hundred fifty-eight million, four hundred sixty thousand, six hundred sixteen".