154162052257 has 16 divisors (see below), whose sum is σ = 157119056640. Its totient is φ = 151233368832.

The previous prime is 154162052249. The next prime is 154162052263. The reversal of 154162052257 is 752250261451.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 154162052257 - 2³ = 154162052249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154162052267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7790658 + ... + 7810420.

It is an arithmetic number, because the mean of its divisors is an integer number (9819941040).

Almost surely, 2^154162052257 is an apocalyptic number.

It is an amenable number.

154162052257 is a deficient number, since it is larger than the sum of its proper divisors (2957004383).

154162052257 is a wasteful number, since it uses less digits than its factorization.

154162052257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20472.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 154162052257 in words is "one hundred fifty-four billion, one hundred sixty-two million, fifty-two thousand, two hundred fifty-seven".