20155419996 has 24 divisors (see below), whose sum is σ = 47031830160. Its totient is φ = 6718113792.

The previous prime is 20155419983. The next prime is 20155420003. The reversal of 20155419996 is 69991455102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286270 + ... + 349658.

It is an arithmetic number, because the mean of its divisors is an integer number (1959659590).

Almost surely, 2^20155419996 is an apocalyptic number.

It is an amenable number.

20155419996 is an abundant number, since it is smaller than the sum of its proper divisors (26876410164).

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

20155419996 is a wasteful number, since it uses less digits than its factorization.

20155419996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89893 (or 89891 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 51.

The spelling of 20155419996 in words is "twenty billion, one hundred fifty-five million, four hundred nineteen thousand, nine hundred ninety-six".