20178736096 has 24 divisors (see below), whose sum is σ = 41454144144. Its totient is φ = 9650699520.

The previous prime is 20178736069. The next prime is 20178736129. The reversal of 20178736096 is 69063787102.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13707645 + ... + 13709116.

It is an arithmetic number, because the mean of its divisors is an integer number (1727256006).

Almost surely, 2^20178736096 is an apocalyptic number.

It is an amenable number.

20178736096 is an abundant number, since it is smaller than the sum of its proper divisors (21275408048).

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

20178736096 is a wasteful number, since it uses less digits than its factorization.

20178736096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27416794 (or 27416786 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 20178736096 in words is "twenty billion, one hundred seventy-eight million, seven hundred thirty-six thousand, ninety-six".