8056551638 has 16 divisors (see below), whose sum is σ = 12488317776. Its totient is φ = 3895634400.

The previous prime is 8056551623. The next prime is 8056551647. The reversal of 8056551638 is 8361556508.

It is a junction number, because it is equal to n+sod(n) for n = 8056551592 and 8056551601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455081 + ... + 472452.

It is an arithmetic number, because the mean of its divisors is an integer number (780519861).

Almost surely, 2^8056551638 is an apocalyptic number.

8056551638 is a deficient number, since it is larger than the sum of its proper divisors (4431766138).

8056551638 is a wasteful number, since it uses less digits than its factorization.

8056551638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927679.

The product of its (nonzero) digits is 864000, while the sum is 47.

The square root of 8056551638 is about 89758.2956500401. The cubic root of 8056551638 is about 2004.7015754336.

The spelling of 8056551638 in words is "eight billion, fifty-six million, five hundred fifty-one thousand, six hundred thirty-eight".