612161162834418 has 40 divisors (see below), whose sum is σ = 1371715694563500. Its totient is φ = 204050561706720.

The previous prime is 612161162834407. The next prime is 612161162834467. The reversal of 612161162834418 is 814438261161216.

612161162834418 is a `hidden beast` number, since 6 + 1 + 2 + 1 + 6 + 1 + 1 + 628 + 3 + 4 + 4 + 1 + 8 = 666.

612161162834418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 413153064911889 + 199008097922529 = 20326167^2 + 14107023^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18744793 + ... + 39694956.

Almost surely, 2^{612161162834418} is an apocalyptic number.

612161162834418 is an abundant number, since it is smaller than the sum of its proper divisors (759554531729082).

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

612161162834418 is a wasteful number, since it uses less digits than its factorization.

612161162834418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58504424 (or 58504415 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 612161162834418 in words is "six hundred twelve trillion, one hundred sixty-one billion, one hundred sixty-two million, eight hundred thirty-four thousand, four hundred eighteen".