157766345820927 has 6 divisors (see below), whose sum is σ = 227884721741352. Its totient is φ = 105177563880612.

The previous prime is 157766345820917. The next prime is 157766345820931. The reversal of 157766345820927 is 729028543667751.

157766345820927 is a `hidden beast` number, since 1 + 5 + 7 + 7 + 6 + 6 + 34 + 582 + 0 + 9 + 2 + 7 = 666.

It is not a de Polignac number, because 157766345820927 - 2¹⁰ = 157766345819903 is a prime.

It is a super-2 number, since 2×157766345820927² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157766345820917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8764796990043 + ... + 8764796990060.

It is an arithmetic number, because the mean of its divisors is an integer number (37980786956892).

It is a 1-persistent number, because it is pandigital, but 2⋅157766345820927 = 315532691641854 is not.

Almost surely, 2^{157766345820927} is an apocalyptic number.

157766345820927 is a deficient number, since it is larger than the sum of its proper divisors (70118375920425).

157766345820927 is a wasteful number, since it uses less digits than its factorization.

157766345820927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17529593980109 (or 17529593980106 counting only the distinct ones).

The product of its (nonzero) digits is 1066867200, while the sum is 72.

The spelling of 157766345820927 in words is "one hundred fifty-seven trillion, seven hundred sixty-six billion, three hundred forty-five million, eight hundred twenty thousand, nine hundred twenty-seven".