1620980216 has 32 divisors (see below), whose sum is σ = 3082060800. Its totient is φ = 799165920.

The previous prime is 1620980191. The next prime is 1620980237. The reversal of 1620980216 is 6120890261.

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, 192821 + ... + 201051.

It is an arithmetic number, because the mean of its divisors is an integer number (96314400).

Almost surely, 2^1620980216 is an apocalyptic number.

It is an amenable number.

1620980216 is a deficient number, since it is larger than the sum of its proper divisors (1461080584).

1620980216 is a wasteful number, since it uses less digits than its factorization.

1620980216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8579 (or 8575 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1620980216 is about 40261.3985847486. The cubic root of 1620980216 is about 1174.6971221154.

The spelling of 1620980216 in words is "one billion, six hundred twenty million, nine hundred eighty thousand, two hundred sixteen".