3665409998 has 8 divisors (see below), whose sum is σ = 5559891840. Its totient is φ = 1812112720.

The previous prime is 3665409949. The next prime is 3665410013. The reversal of 3665409998 is 8999045663.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10295918 + ... + 10296273.

It is an arithmetic number, because the mean of its divisors is an integer number (694986480).

Almost surely, 2^3665409998 is an apocalyptic number.

3665409998 is a deficient number, since it is larger than the sum of its proper divisors (1894481842).

3665409998 is a wasteful number, since it uses less digits than its factorization.

3665409998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20592282.

The product of its (nonzero) digits is 12597120, while the sum is 59.

The square root of 3665409998 is about 60542.6295927093. The cubic root of 3665409998 is about 1541.8454850241.

The spelling of 3665409998 in words is "three billion, six hundred sixty-five million, four hundred nine thousand, nine hundred ninety-eight".