8051661508 has 48 divisors (see below), whose sum is σ = 15837897600. Its totient is φ = 3549804800.

The previous prime is 8051661503. The next prime is 8051661571.

8051661508 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (8051661503) 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, 299193 + ... + 324991.

It is an arithmetic number, because the mean of its divisors is an integer number (329956200).

Almost surely, 2^8051661508 is an apocalyptic number.

It is an amenable number.

8051661508 is a deficient number, since it is larger than the sum of its proper divisors (7786236092).

8051661508 is a wasteful number, since it uses less digits than its factorization.

8051661508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26028 (or 26026 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 8051661508 is about 89731.0509689929. The cubic root of 8051661508 is about 2004.2958917172.

The spelling of 8051661508 in words is "eight billion, fifty-one million, six hundred sixty-one thousand, five hundred eight".