1956021016 has 16 divisors (see below), whose sum is σ = 3826998000. Its totient is φ = 935488224.

The previous prime is 1956020977. The next prime is 1956021019. The reversal of 1956021016 is 6101206591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956021019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5315091 + ... + 5315458.

It is an arithmetic number, because the mean of its divisors is an integer number (239187375).

Almost surely, 2^1956021016 is an apocalyptic number.

It is an amenable number.

1956021016 is a deficient number, since it is larger than the sum of its proper divisors (1870976984).

1956021016 is a wasteful number, since it uses less digits than its factorization.

1956021016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10630578 (or 10630574 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 1956021016 is about 44226.9263684466. The cubic root of 1956021016 is about 1250.6175116399.

The spelling of 1956021016 in words is "one billion, nine hundred fifty-six million, twenty-one thousand, sixteen".