1157166215 has 16 divisors (see below), whose sum is σ = 1473208320. Its totient is φ = 870095520.

The previous prime is 1157166209. The next prime is 1157166221. The reversal of 1157166215 is 5126617511.

It is an interprime number because it is at equal distance from previous prime (1157166209) and next prime (1157166221).

It is not a de Polignac number, because 1157166215 - 2⁶ = 1157166151 is a prime.

It is a congruent number.

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, 35891 + ... + 60020.

It is an arithmetic number, because the mean of its divisors is an integer number (92075520).

Almost surely, 2^1157166215 is an apocalyptic number.

1157166215 is a deficient number, since it is larger than the sum of its proper divisors (316042105).

1157166215 is a wasteful number, since it uses less digits than its factorization.

1157166215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96062.

The product of its digits is 12600, while the sum is 35.

The square root of 1157166215 is about 34017.1458973265. The cubic root of 1157166215 is about 1049.8612711652.

The spelling of 1157166215 in words is "one billion, one hundred fifty-seven million, one hundred sixty-six thousand, two hundred fifteen".