16109616501889 has 12 divisors (see below), whose sum is σ = 17164259846800. Its totient is φ = 15077865417624.

The previous prime is 16109616501767. The next prime is 16109616501947. The reversal of 16109616501889 is 98810561690161.

16109616501889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16109616501889 - 2¹³ = 16109616493697 is a prime.

It is a super-2 number, since 2×16109616501889² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16109616511889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61407399 + ... + 61669180.

Almost surely, 2^{16109616501889} is an apocalyptic number.

16109616501889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16109616501889 is a deficient number, since it is larger than the sum of its proper divisors (1054643344911).

16109616501889 is an equidigital number, since it uses as much as digits as its factorization.

16109616501889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123076764 (or 123076681 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 61.

The spelling of 16109616501889 in words is "sixteen trillion, one hundred nine billion, six hundred sixteen million, five hundred one thousand, eight hundred eighty-nine".