18112161454 has 32 divisors (see below), whose sum is σ = 28874348640. Its totient is φ = 8491456512.

The previous prime is 18112161443. The next prime is 18112161461. The reversal of 18112161454 is 45416121181.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 17950102 + ... + 17951110.

It is an arithmetic number, because the mean of its divisors is an integer number (902323395).

Almost surely, 2^18112161454 is an apocalyptic number.

18112161454 is a deficient number, since it is larger than the sum of its proper divisors (10762187186).

18112161454 is a wasteful number, since it uses less digits than its factorization.

18112161454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484.

The product of its digits is 7680, while the sum is 34.

The spelling of 18112161454 in words is "eighteen billion, one hundred twelve million, one hundred sixty-one thousand, four hundred fifty-four".