1600664064 has 40 divisors (see below), whose sum is σ = 4264273200. Its totient is φ = 533554176.

The previous prime is 1600664057. The next prime is 1600664071. The reversal of 1600664064 is 4604660061.

It is an interprime number because it is at equal distance from previous prime (1600664057) and next prime (1600664071).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519514 + ... + 522585.

It is an arithmetic number, because the mean of its divisors is an integer number (106606830).

Almost surely, 2^1600664064 is an apocalyptic number.

It is an amenable number.

1600664064 is an abundant number, since it is smaller than the sum of its proper divisors (2663609136).

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

1600664064 is an equidigital number, since it uses as much as digits as its factorization.

1600664064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042120 (or 1042104 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1600664064 is about 40008.2999388877. The cubic root of 1600664064 is about 1169.7688841472.

The spelling of 1600664064 in words is "one billion, six hundred million, six hundred sixty-four thousand, sixty-four".