1664876337 has 8 divisors (see below), whose sum is σ = 2257459680. Its totient is φ = 1091105280.

The previous prime is 1664876287. The next prime is 1664876363. The reversal of 1664876337 is 7336784661.

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

It is not a de Polignac number, because 1664876337 - 2⁷ = 1664876209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1664876337.

It is not an unprimeable number, because it can be changed into a prime (1664878337) 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, 4702864 + ... + 4703217.

It is an arithmetic number, because the mean of its divisors is an integer number (282182460).

Almost surely, 2^1664876337 is an apocalyptic number.

It is an amenable number.

1664876337 is a deficient number, since it is larger than the sum of its proper divisors (592583343).

1664876337 is an equidigital number, since it uses as much as digits as its factorization.

1664876337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9406143.

The product of its digits is 3048192, while the sum is 51.

The square root of 1664876337 is about 40802.8961839720. The cubic root of 1664876337 is about 1185.2064152878.

The spelling of 1664876337 in words is "one billion, six hundred sixty-four million, eight hundred seventy-six thousand, three hundred thirty-seven".