664033153 has 6 divisors (see below), whose sum is σ = 772446786. Its totient is φ = 569171232.

The previous prime is 664033151. The next prime is 664033189. The reversal of 664033153 is 351330466.

It can be written as a sum of positive squares in only one way, i.e., 663938289 + 94864 = 25767^2 + 308^2 .

It is not a de Polignac number, because 664033153 - 2¹ = 664033151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664033151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6775800 + ... + 6775897.

It is an arithmetic number, because the mean of its divisors is an integer number (128741131).

Almost surely, 2^664033153 is an apocalyptic number.

It is an amenable number.

664033153 is a deficient number, since it is larger than the sum of its proper divisors (108413633).

664033153 is a wasteful number, since it uses less digits than its factorization.

664033153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13551711 (or 13551704 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 664033153 is about 25768.8407383801. The cubic root of 664033153 is about 872.4286537008.

It can be divided in two parts, 6640 and 33153, that added together give a palindrome (39793).

The spelling of 664033153 in words is "six hundred sixty-four million, thirty-three thousand, one hundred fifty-three".