17664610397 has 48 divisors (see below), whose sum is σ = 21898812672. Its totient is φ = 14176673280.

The previous prime is 17664610387. The next prime is 17664610417. The reversal of 17664610397 is 79301646671.

It is not a de Polignac number, because 17664610397 - 2⁶ = 17664610333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17664610307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18079973 + ... + 18080949.

It is an arithmetic number, because the mean of its divisors is an integer number (456225264).

Almost surely, 2^17664610397 is an apocalyptic number.

It is an amenable number.

17664610397 is a deficient number, since it is larger than the sum of its proper divisors (4234202275).

17664610397 is a wasteful number, since it uses less digits than its factorization.

17664610397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 17664610397 in words is "seventeen billion, six hundred sixty-four million, six hundred ten thousand, three hundred ninety-seven".