655945157 has 4 divisors (see below), whose sum is σ = 749651616. Its totient is φ = 562238700.

The previous prime is 655945127. The next prime is 655945181. The reversal of 655945157 is 751549556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655945157 - 2⁶ = 655945093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655945117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46853219 + ... + 46853232.

It is an arithmetic number, because the mean of its divisors is an integer number (187412904).

Almost surely, 2^655945157 is an apocalyptic number.

It is an amenable number.

655945157 is a deficient number, since it is larger than the sum of its proper divisors (93706459).

655945157 is an equidigital number, since it uses as much as digits as its factorization.

655945157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93706458.

The product of its digits is 945000, while the sum is 47.

The square root of 655945157 is about 25611.4262976508. The cubic root of 655945157 is about 868.8720826173.

The spelling of 655945157 in words is "six hundred fifty-five million, nine hundred forty-five thousand, one hundred fifty-seven".