2120691016 has 16 divisors (see below), whose sum is σ = 3977222400. Its totient is φ = 1060098384.

The previous prime is 2120690987. The next prime is 2120691043. The reversal of 2120691016 is 6101960212.

It is a super-2 number, since 2×2120691016² = 8994660770686224512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8541 + ... + 65683.

It is an arithmetic number, because the mean of its divisors is an integer number (248576400).

Almost surely, 2^2120691016 is an apocalyptic number.

It is an amenable number.

2120691016 is a deficient number, since it is larger than the sum of its proper divisors (1856531384).

2120691016 is a wasteful number, since it uses less digits than its factorization.

2120691016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61788 (or 61784 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 2120691016 is about 46050.9610757474. The cubic root of 2120691016 is about 1284.7712181839.

The spelling of 2120691016 in words is "two billion, one hundred twenty million, six hundred ninety-one thousand, sixteen".