2016625820 has 24 divisors (see below), whose sum is σ = 4619906928. Its totient is φ = 733318400.

The previous prime is 2016625777. The next prime is 2016625873. The reversal of 2016625820 is 285266102.

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, 4583021 + ... + 4583460.

It is an arithmetic number, because the mean of its divisors is an integer number (192496122).

Almost surely, 2^2016625820 is an apocalyptic number.

2016625820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2016625820 is an abundant number, since it is smaller than the sum of its proper divisors (2603281108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2016625820 is a wasteful number, since it uses less digits than its factorization.

2016625820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9166501 (or 9166499 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2016625820 is about 44906.8571601264. The cubic root of 2016625820 is about 1263.4026237378.

The spelling of 2016625820 in words is "two billion, sixteen million, six hundred twenty-five thousand, eight hundred twenty".