16404370817602 has 8 divisors (see below), whose sum is σ = 24606663864012. Its totient is φ = 8202149529600.

The previous prime is 16404370817581. The next prime is 16404370817609. The reversal of 16404370817602 is 20671807340461.

It can be written as a sum of positive squares in 2 ways, for example, as 14792108294601 + 1612262523001 = 3846051^2 + 1269749^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16404370817609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17364399 + ... + 18284722.

Almost surely, 2^{16404370817602} is an apocalyptic number.

16404370817602 is a deficient number, since it is larger than the sum of its proper divisors (8202293046410).

16404370817602 is a wasteful number, since it uses less digits than its factorization.

16404370817602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35879204.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 16404370817602 in words is "sixteen trillion, four hundred four billion, three hundred seventy million, eight hundred seventeen thousand, six hundred two".