1980163718 has 16 divisors (see below), whose sum is σ = 3205031760. Its totient is φ = 912120096.

The previous prime is 1980163697. The next prime is 1980163729. The reversal of 1980163718 is 8173610891.

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, 61580 + ... + 88047.

It is an arithmetic number, because the mean of its divisors is an integer number (200314485).

Almost surely, 2^1980163718 is an apocalyptic number.

1980163718 is a deficient number, since it is larger than the sum of its proper divisors (1224868042).

1980163718 is a wasteful number, since it uses less digits than its factorization.

1980163718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150151.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 1980163718 is about 44499.0305287655. The cubic root of 1980163718 is about 1255.7418444337.

The spelling of 1980163718 in words is "one billion, nine hundred eighty million, one hundred sixty-three thousand, seven hundred eighteen".