2154455516474 has 32 divisors (see below), whose sum is σ = 3295414720512. Its totient is φ = 1056156192000.

The previous prime is 2154455516413. The next prime is 2154455516489. The reversal of 2154455516474 is 4746155544512.

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, 98631794 + ... + 98653634.

It is an arithmetic number, because the mean of its divisors is an integer number (102981710016).

Almost surely, 2^{2154455516474} is an apocalyptic number.

2154455516474 is a deficient number, since it is larger than the sum of its proper divisors (1140959204038).

2154455516474 is a wasteful number, since it uses less digits than its factorization.

2154455516474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25742.

The product of its digits is 13440000, while the sum is 53.

The spelling of 2154455516474 in words is "two trillion, one hundred fifty-four billion, four hundred fifty-five million, five hundred sixteen thousand, four hundred seventy-four".