20118547084 has 48 divisors (see below), whose sum is σ = 36942399648. Its totient is φ = 9577870848.

The previous prime is 20118547073. The next prime is 20118547091. The reversal of 20118547084 is 48074581102.

It is a super-2 number, since 2×20118547084² (a number of 21 digits) contains 22 as substring.

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, 1424184 + ... + 1438240.

It is an arithmetic number, because the mean of its divisors is an integer number (769633326).

Almost surely, 2^20118547084 is an apocalyptic number.

It is an amenable number.

20118547084 is a deficient number, since it is larger than the sum of its proper divisors (16823852564).

20118547084 is a wasteful number, since it uses less digits than its factorization.

20118547084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14314 (or 14312 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The spelling of 20118547084 in words is "twenty billion, one hundred eighteen million, five hundred forty-seven thousand, eighty-four".