18050997316 has 81 divisors (see below), whose sum is σ = 36061308381. Its totient is φ = 7900015200.

The previous prime is 18050997311. The next prime is 18050997319. The reversal of 18050997316 is 61379905081.

The square root of 18050997316 is 134354.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17686340100 + 364657216 = 132990^2 + 19096^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18050997316.

It is not an unprimeable number, because it can be changed into a prime (18050997311) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 91629330 + ... + 91629526.

Almost surely, 2^18050997316 is an apocalyptic number.

18050997316 is the 134354-th square number.

It is an amenable number.

18050997316 is a deficient number, since it is larger than the sum of its proper divisors (18010311065).

18050997316 is a wasteful number, since it uses less digits than its factorization.

18050997316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

Multiplying 18050997316 by its sum of digits (49), we get a square (884498868484 = 940478²).

The spelling of 18050997316 in words is "eighteen billion, fifty million, nine hundred ninety-seven thousand, three hundred sixteen".