664169040303 has 16 divisors (see below), whose sum is σ = 886690984032. Its totient is φ = 442213376000.

The previous prime is 664169040299. The next prime is 664169040347. The reversal of 664169040303 is 303040961466.

It is a cyclic number.

It is not a de Polignac number, because 664169040303 - 2² = 664169040299 is a prime.

It is a super-2 number, since 2×664169040303² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664169041303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24992143 + ... + 25018703.

It is an arithmetic number, because the mean of its divisors is an integer number (55418186502).

Almost surely, 2^664169040303 is an apocalyptic number.

664169040303 is a deficient number, since it is larger than the sum of its proper divisors (222521943729).

664169040303 is a wasteful number, since it uses less digits than its factorization.

664169040303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36906.

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 664169040303 in words is "six hundred sixty-four billion, one hundred sixty-nine million, forty thousand, three hundred three".