165704447998 has 8 divisors (see below), whose sum is σ = 248660547408. Its totient is φ = 82817598864.

The previous prime is 165704447989. The next prime is 165704448029. The reversal of 165704447998 is 899744407561.

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, 17306586 + ... + 17316157.

It is an arithmetic number, because the mean of its divisors is an integer number (31082568426).

Almost surely, 2^165704447998 is an apocalyptic number.

165704447998 is a deficient number, since it is larger than the sum of its proper divisors (82956099410).

165704447998 is a wasteful number, since it uses less digits than its factorization.

165704447998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34625138.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 165704447998 in words is "one hundred sixty-five billion, seven hundred four million, four hundred forty-seven thousand, nine hundred ninety-eight".