1602897664 has 72 divisors (see below), whose sum is σ = 3258299520. Its totient is φ = 786889728.

The previous prime is 1602897631. The next prime is 1602897679. The reversal of 1602897664 is 4667982061.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4464717 + ... + 4465075.

It is an arithmetic number, because the mean of its divisors is an integer number (45254160).

Almost surely, 2^1602897664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1602897664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629149760).

1602897664 is an abundant number, since it is smaller than the sum of its proper divisors (1655401856).

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

1602897664 is a wasteful number, since it uses less digits than its factorization.

1602897664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 1602897664 is about 40036.2044155037. The cubic root of 1602897664 is about 1170.3127378854.

The spelling of 1602897664 in words is "one billion, six hundred two million, eight hundred ninety-seven thousand, six hundred sixty-four".