20437814118 has 16 divisors (see below), whose sum is σ = 40877524800. Its totient is φ = 6812288616.

The previous prime is 20437814101. The next prime is 20437814183. The reversal of 20437814118 is 81141873402.

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, 88333 + ... + 220631.

It is an arithmetic number, because the mean of its divisors is an integer number (2554845300).

Almost surely, 2^20437814118 is an apocalyptic number.

20437814118 is an abundant number, since it is smaller than the sum of its proper divisors (20439710682).

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

20437814118 is a wasteful number, since it uses less digits than its factorization.

20437814118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158051.

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 20437814118 in words is "twenty billion, four hundred thirty-seven million, eight hundred fourteen thousand, one hundred eighteen".