1980223085 has 16 divisors (see below), whose sum is σ = 2416055040. Its totient is φ = 1557816000.

The previous prime is 1980223031. The next prime is 1980223093. The reversal of 1980223085 is 5803220891.

It is not a de Polignac number, because 1980223085 - 2²² = 1976028781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89159 + ... + 109131.

It is an arithmetic number, because the mean of its divisors is an integer number (151003440).

Almost surely, 2^1980223085 is an apocalyptic number.

It is an amenable number.

1980223085 is a deficient number, since it is larger than the sum of its proper divisors (435831955).

1980223085 is a wasteful number, since it uses less digits than its factorization.

1980223085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20308.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1980223085 is about 44499.6975832421. The cubic root of 1980223085 is about 1255.7543937127.

The spelling of 1980223085 in words is "one billion, nine hundred eighty million, two hundred twenty-three thousand, eighty-five".