16510536989 has 8 divisors (see below), whose sum is σ = 17380692000. Its totient is φ = 15640499952.

The previous prime is 16510536983. The next prime is 16510537007. The reversal of 16510536989 is 98963501561.

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

It is not a de Polignac number, because 16510536989 - 2³² = 12215569693 is a prime.

It is a super-2 number, since 2×16510536989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16510536989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16510536983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534242 + ... + 564300.

It is an arithmetic number, because the mean of its divisors is an integer number (2172586500).

Almost surely, 2^16510536989 is an apocalyptic number.

16510536989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16510536989 is a deficient number, since it is larger than the sum of its proper divisors (870155011).

16510536989 is a wasteful number, since it uses less digits than its factorization.

16510536989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58987.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 16510536989 in words is "sixteen billion, five hundred ten million, five hundred thirty-six thousand, nine hundred eighty-nine".