664662053 has 8 divisors (see below), whose sum is σ = 731739360. Its totient is φ = 598693680.

The previous prime is 664662001. The next prime is 664662071. The reversal of 664662053 is 350266466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 664662053 - 2⁶ = 664661989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 664661998 and 664662016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664662083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275975 + ... + 278372.

It is an arithmetic number, because the mean of its divisors is an integer number (91467420).

Almost surely, 2^664662053 is an apocalyptic number.

It is an amenable number.

664662053 is a deficient number, since it is larger than the sum of its proper divisors (67077307).

664662053 is a wasteful number, since it uses less digits than its factorization.

664662053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554467.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 664662053 is about 25781.0405724827. The cubic root of 664662053 is about 872.7039899825.

The spelling of 664662053 in words is "six hundred sixty-four million, six hundred sixty-two thousand, fifty-three".