16289140644504 has 640 divisors, whose sum is σ = 59141860377600. Its totient is φ = 4067660436480.

The previous prime is 16289140644493. The next prime is 16289140644533. The reversal of 16289140644504 is 40544604198261.

16289140644504 is a `hidden beast` number, since 1 + 6 + 2 + 8 + 91 + 4 + 0 + 6 + 44 + 504 = 666.

It is a super-2 number, since 2×16289140644504² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2999286669 + ... + 2999292099.

It is an arithmetic number, because the mean of its divisors is an integer number (92409156840).

Almost surely, 2^{16289140644504} is an apocalyptic number.

16289140644504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16289140644504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29570930188800).

16289140644504 is an abundant number, since it is smaller than the sum of its proper divisors (42852719733096).

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

16289140644504 is a wasteful number, since it uses less digits than its factorization.

16289140644504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8165 (or 8152 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 16289140644504 in words is "sixteen trillion, two hundred eighty-nine billion, one hundred forty million, six hundred forty-four thousand, five hundred four".