655613157 has 16 divisors (see below), whose sum is σ = 888259520. Its totient is φ = 430036992.

The previous prime is 655613149. The next prime is 655613171. The reversal of 655613157 is 751316556.

It is not a de Polignac number, because 655613157 - 2³ = 655613149 is a prime.

It is a super-2 number, since 2×655613157² = 859657223263013298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655613117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242469 + ... + 245157.

It is an arithmetic number, because the mean of its divisors is an integer number (55516220).

Almost surely, 2^655613157 is an apocalyptic number.

655613157 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

655613157 is a deficient number, since it is larger than the sum of its proper divisors (232646363).

655613157 is a wasteful number, since it uses less digits than its factorization.

655613157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972.

The product of its digits is 94500, while the sum is 39.

The square root of 655613157 is about 25604.9439952522. The cubic root of 655613157 is about 868.7254676094.

The spelling of 655613157 in words is "six hundred fifty-five million, six hundred thirteen thousand, one hundred fifty-seven".