1664298598 has 8 divisors (see below), whose sum is σ = 2496710592. Its totient is φ = 832061736.

The previous prime is 1664298593. The next prime is 1664298611. The reversal of 1664298598 is 8958924661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664298593) 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, 16665 + ... + 60052.

It is an arithmetic number, because the mean of its divisors is an integer number (312088824).

Almost surely, 2^1664298598 is an apocalyptic number.

1664298598 is a deficient number, since it is larger than the sum of its proper divisors (832411994).

1664298598 is a wasteful number, since it uses less digits than its factorization.

1664298598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87566.

The product of its digits is 7464960, while the sum is 58.

The square root of 1664298598 is about 40795.8159374218. The cubic root of 1664298598 is about 1185.0693041653.

The spelling of 1664298598 in words is "one billion, six hundred sixty-four million, two hundred ninety-eight thousand, five hundred ninety-eight".