15401350161 has 6 divisors (see below), whose sum is σ = 22246394690. Its totient is φ = 10267566768.

The previous prime is 15401350123. The next prime is 15401350199. The reversal of 15401350161 is 16105310451.

15401350161 is a `hidden beast` number, since 1 + 540 + 13 + 50 + 1 + 61 = 666.

It is an interprime number because it is at equal distance from previous prime (15401350123) and next prime (15401350199).

It can be written as a sum of positive squares in only one way, i.e., 14356832400 + 1044517761 = 119820^2 + 32319^2 .

It is a de Polignac number, because none of the positive numbers 2^k-15401350161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15401350061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 855630556 + ... + 855630573.

Almost surely, 2^15401350161 is an apocalyptic number.

It is an amenable number.

15401350161 is a deficient number, since it is larger than the sum of its proper divisors (6845044529).

15401350161 is a wasteful number, since it uses less digits than its factorization.

15401350161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711261135 (or 1711261132 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 15401350161 in words is "fifteen billion, four hundred one million, three hundred fifty thousand, one hundred sixty-one".