664202310377 has 4 divisors (see below), whose sum is σ = 664297734996. Its totient is φ = 664106885760.

The previous prime is 664202310353. The next prime is 664202310379. The reversal of 664202310377 is 773013202466.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 337728348736 + 326473961641 = 581144^2 + 571379^2 .

It is a cyclic number.

It is not a de Polignac number, because 664202310377 - 2¹⁶ = 664202244841 is a prime.

It is a super-2 number, since 2×664202310377² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664202310379) 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, 47701868 + ... + 47715789.

It is an arithmetic number, because the mean of its divisors is an integer number (166074433749).

Almost surely, 2^664202310377 is an apocalyptic number.

It is an amenable number.

664202310377 is a deficient number, since it is larger than the sum of its proper divisors (95424619).

664202310377 is an equidigital number, since it uses as much as digits as its factorization.

664202310377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95424618.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 664202310377 in words is "six hundred sixty-four billion, two hundred two million, three hundred ten thousand, three hundred seventy-seven".