8155994814 has 160 divisors (see below), whose sum is σ = 20557113984. Its totient is φ = 2395552320.

The previous prime is 8155994807. The next prime is 8155994827. The reversal of 8155994814 is 4184995518.

8155994814 is a `hidden beast` number, since 8 + 1 + 5 + 599 + 48 + 1 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12489712 + ... + 12490364.

Almost surely, 2^8155994814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8155994814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10278556992).

8155994814 is an abundant number, since it is smaller than the sum of its proper divisors (12401119170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8155994814 is a wasteful number, since it uses less digits than its factorization.

8155994814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 875 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 54.

The square root of 8155994814 is about 90310.5465269699. The cubic root of 8155994814 is about 2012.9159770456.

The spelling of 8155994814 in words is "eight billion, one hundred fifty-five million, nine hundred ninety-four thousand, eight hundred fourteen".