1366157198 has 8 divisors (see below), whose sum is σ = 2341983792. Its totient is φ = 585495936.

The previous prime is 1366157173. The next prime is 1366157207. The reversal of 1366157198 is 8917516631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1366157198² = 3732770979294422408, which contains 22 as substring.

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, 48791315 + ... + 48791342.

It is an arithmetic number, because the mean of its divisors is an integer number (292747974).

Almost surely, 2^1366157198 is an apocalyptic number.

1366157198 is a deficient number, since it is larger than the sum of its proper divisors (975826594).

1366157198 is an equidigital number, since it uses as much as digits as its factorization.

1366157198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97582666.

The product of its digits is 272160, while the sum is 47.

The square root of 1366157198 is about 36961.5637926752. The cubic root of 1366157198 is about 1109.6011331001.

The spelling of 1366157198 in words is "one billion, three hundred sixty-six million, one hundred fifty-seven thousand, one hundred ninety-eight".