16889688216402 has 32 divisors (see below), whose sum is σ = 36704246046720. Its totient is φ = 5161534598160.

The previous prime is 16889688216391. The next prime is 16889688216403. The reversal of 16889688216402 is 20461288698861.

It is a super-3 number, since 3×16889688216402³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16889688216403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2389595818 + ... + 2389602885.

It is an arithmetic number, because the mean of its divisors is an integer number (1147007688960).

Almost surely, 2^{16889688216402} is an apocalyptic number.

16889688216402 is an abundant number, since it is smaller than the sum of its proper divisors (19814557830318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16889688216402 is a wasteful number, since it uses less digits than its factorization.

16889688216402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779198758.

The product of its (nonzero) digits is 127401984, while the sum is 69.

The spelling of 16889688216402 in words is "sixteen trillion, eight hundred eighty-nine billion, six hundred eighty-eight million, two hundred sixteen thousand, four hundred two".