8042657155 has 32 divisors (see below), whose sum is σ = 11173478400. Its totient is φ = 5506849152.

The previous prime is 8042657149. The next prime is 8042657167. The reversal of 8042657155 is 5517562408.

It is a cyclic number.

It is not a de Polignac number, because 8042657155 - 2⁵ = 8042657123 is a prime.

It is a super-2 number, since 2×8042657155² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11235 + ... + 127324.

It is an arithmetic number, because the mean of its divisors is an integer number (349171200).

Almost surely, 2^8042657155 is an apocalyptic number.

8042657155 is a deficient number, since it is larger than the sum of its proper divisors (3130821245).

8042657155 is a wasteful number, since it uses less digits than its factorization.

8042657155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138643.

The product of its (nonzero) digits is 336000, while the sum is 43.

The square root of 8042657155 is about 89680.8628136460. The cubic root of 8042657155 is about 2003.5484633970.

The spelling of 8042657155 in words is "eight billion, forty-two million, six hundred fifty-seven thousand, one hundred fifty-five".