2152951664 has 20 divisors (see below), whose sum is σ = 4187212656. Its totient is φ = 1072380672.

The previous prime is 2152951663. The next prime is 2152951667. The reversal of 2152951664 is 4661592512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152951663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251609 + ... + 260024.

Almost surely, 2^2152951664 is an apocalyptic number.

It is an amenable number.

2152951664 is a deficient number, since it is larger than the sum of its proper divisors (2034260992).

2152951664 is a wasteful number, since it uses less digits than its factorization.

2152951664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511904 (or 511898 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 2152951664 is about 46399.9101723268. The cubic root of 2152951664 is about 1291.2532467407.

The spelling of 2152951664 in words is "two billion, one hundred fifty-two million, nine hundred fifty-one thousand, six hundred sixty-four".