20496802180 has 24 divisors (see below), whose sum is σ = 43056300672. Its totient is φ = 8196241632.

The previous prime is 20496802171. The next prime is 20496802231. The reversal of 20496802180 is 8120869402.

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, 86422 + ... + 220141.

It is an arithmetic number, because the mean of its divisors is an integer number (1794012528).

Almost surely, 2^20496802180 is an apocalyptic number.

20496802180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20496802180 is an abundant number, since it is smaller than the sum of its proper divisors (22559498492).

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

20496802180 is a wasteful number, since it uses less digits than its factorization.

20496802180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309915 (or 309913 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 20496802180 in words is "twenty billion, four hundred ninety-six million, eight hundred two thousand, one hundred eighty".