8118157545 has 24 divisors (see below), whose sum is σ = 14101641216. Its totient is φ = 4320401568.

The previous prime is 8118157513. The next prime is 8118157549. The reversal of 8118157545 is 5457518118.

8118157545 is a `hidden beast` number, since 81 + 18 + 15 + 7 + 545 = 666.

It is not a de Polignac number, because 8118157545 - 2⁵ = 8118157513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8118157545.

It is not an unprimeable number, because it can be changed into a prime (8118157549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172137 + ... + 214166.

It is an arithmetic number, because the mean of its divisors is an integer number (587568384).

Almost surely, 2^8118157545 is an apocalyptic number.

It is an amenable number.

8118157545 is a deficient number, since it is larger than the sum of its proper divisors (5983483671).

8118157545 is a wasteful number, since it uses less digits than its factorization.

8118157545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386781 (or 386778 counting only the distinct ones).

The product of its digits is 224000, while the sum is 45.

The square root of 8118157545 is about 90100.8187809634. The cubic root of 8118157545 is about 2009.7983795685.

The spelling of 8118157545 in words is "eight billion, one hundred eighteen million, one hundred fifty-seven thousand, five hundred forty-five".