154405564436 has 12 divisors (see below), whose sum is σ = 270406549812. Its totient is φ = 77146550208.

The previous prime is 154405564433. The next prime is 154405564451. The reversal of 154405564436 is 634465504451.

It can be written as a sum of positive squares in 2 ways, for example, as 129758448400 + 24647116036 = 360220^2 + 156994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154405564433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14051825 + ... + 14062808.

It is an arithmetic number, because the mean of its divisors is an integer number (22533879151).

Almost surely, 2^154405564436 is an apocalyptic number.

It is an amenable number.

154405564436 is a deficient number, since it is larger than the sum of its proper divisors (116000985376).

154405564436 is a wasteful number, since it uses less digits than its factorization.

154405564436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28116010 (or 28116008 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 154405564436 in words is "one hundred fifty-four billion, four hundred five million, five hundred sixty-four thousand, four hundred thirty-six".