8157944255 has 16 divisors (see below), whose sum is σ = 10018844640. Its totient is φ = 6375249408.

The previous prime is 8157944239. The next prime is 8157944257. The reversal of 8157944255 is 5524497518.

It is a cyclic number.

It is not a de Polignac number, because 8157944255 - 2⁴ = 8157944239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8157944257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73502 + ... + 147371.

It is an arithmetic number, because the mean of its divisors is an integer number (626177790).

Almost surely, 2^8157944255 is an apocalyptic number.

8157944255 is a deficient number, since it is larger than the sum of its proper divisors (1860900385).

8157944255 is a wasteful number, since it uses less digits than its factorization.

8157944255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221050.

The product of its digits is 2016000, while the sum is 50.

The square root of 8157944255 is about 90321.3388685088. The cubic root of 8157944255 is about 2013.0763395938.

The spelling of 8157944255 in words is "eight billion, one hundred fifty-seven million, nine hundred forty-four thousand, two hundred fifty-five".