2015195964 has 24 divisors (see below), whose sum is σ = 4864266960. Its totient is φ = 648568704.

The previous prime is 2015195921. The next prime is 2015195971. The reversal of 2015195964 is 4695915102.

It is a super-2 number, since 2×2015195964² = 8122029546643778592, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2895049 + ... + 2895744.

It is an arithmetic number, because the mean of its divisors is an integer number (202677790).

Almost surely, 2^2015195964 is an apocalyptic number.

It is an amenable number.

2015195964 is an abundant number, since it is smaller than the sum of its proper divisors (2849070996).

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

2015195964 is a wasteful number, since it uses less digits than its factorization.

2015195964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5790829 (or 5790827 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 2015195964 is about 44890.9340958729. The cubic root of 2015195964 is about 1263.1039547226.

The spelling of 2015195964 in words is "two billion, fifteen million, one hundred ninety-five thousand, nine hundred sixty-four".