20338158180 has 48 divisors (see below), whose sum is σ = 57005653824. Its totient is φ = 5417907840.

The previous prime is 20338158179. The next prime is 20338158221. The reversal of 20338158180 is 8185183302.

It is a super-3 number, since 3×20338158180³ (a number of 32 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 116287 + ... + 232806.

It is an arithmetic number, because the mean of its divisors is an integer number (1187617788).

Almost surely, 2^20338158180 is an apocalyptic number.

20338158180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20338158180 is an abundant number, since it is smaller than the sum of its proper divisors (36667495644).

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

20338158180 is a wasteful number, since it uses less digits than its factorization.

20338158180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350076 (or 350074 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 20338158180 in words is "twenty billion, three hundred thirty-eight million, one hundred fifty-eight thousand, one hundred eighty".