1401512664 has 16 divisors (see below), whose sum is σ = 3503781720. Its totient is φ = 467170880.

The previous prime is 1401512653. The next prime is 1401512669. The reversal of 1401512664 is 4662151041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401512669) 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, 29198157 + ... + 29198204.

Almost surely, 2^1401512664 is an apocalyptic number.

It is an amenable number.

1401512664 is an abundant number, since it is smaller than the sum of its proper divisors (2102269056).

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

1401512664 is a wasteful number, since it uses less digits than its factorization.

1401512664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58396370 (or 58396366 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1401512664 is about 37436.7822335200. The cubic root of 1401512664 is about 1119.0917019375.

The spelling of 1401512664 in words is "one billion, four hundred one million, five hundred twelve thousand, six hundred sixty-four".