1325006664 has 16 divisors (see below), whose sum is σ = 3312516720. Its totient is φ = 441668880.

The previous prime is 1325006663. The next prime is 1325006671. The reversal of 1325006664 is 4666005231.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1325006663) 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, 27604282 + ... + 27604329.

It is an arithmetic number, because the mean of its divisors is an integer number (207032295).

Almost surely, 2^1325006664 is an apocalyptic number.

It is an amenable number.

1325006664 is an abundant number, since it is smaller than the sum of its proper divisors (1987510056).

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

1325006664 is a wasteful number, since it uses less digits than its factorization.

1325006664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55208620 (or 55208616 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1325006664 is about 36400.6409833673. The cubic root of 1325006664 is about 1098.3464588614.

The spelling of 1325006664 in words is "one billion, three hundred twenty-five million, six thousand, six hundred sixty-four".