1157166415 has 4 divisors (see below), whose sum is σ = 1388599704. Its totient is φ = 925733128.

The previous prime is 1157166403. The next prime is 1157166427. The reversal of 1157166415 is 5146617511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1157166403) and next prime (1157166427).

It is a cyclic number.

It is not a de Polignac number, because 1157166415 - 2⁵ = 1157166383 is a prime.

It is a super-2 number, since 2×1157166415² = 2678068224007904450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115716637 + ... + 115716646.

It is an arithmetic number, because the mean of its divisors is an integer number (347149926).

Almost surely, 2^1157166415 is an apocalyptic number.

1157166415 is a deficient number, since it is larger than the sum of its proper divisors (231433289).

1157166415 is an equidigital number, since it uses as much as digits as its factorization.

1157166415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231433288.

The product of its digits is 25200, while the sum is 37.

The square root of 1157166415 is about 34017.1488370204. The cubic root of 1157166415 is about 1049.8613316498.

The spelling of 1157166415 in words is "one billion, one hundred fifty-seven million, one hundred sixty-six thousand, four hundred fifteen".