16669511040 has 768 divisors, whose sum is σ = 67735180800. Its totient is φ = 3412131840.

The previous prime is 16669511017. The next prime is 16669511059. The reversal of 16669511040 is 4011596661.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 16669511040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 93125671 + ... + 93125849.

It is an arithmetic number, because the mean of its divisors is an integer number (88196850).

Almost surely, 2^16669511040 is an apocalyptic number.

16669511040 is a gapful number since it is divisible by the number (10) 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 16669511040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33867590400).

16669511040 is an abundant number, since it is smaller than the sum of its proper divisors (51065669760).

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

16669511040 is a wasteful number, since it uses less digits than its factorization.

16669511040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 16669511040 in words is "sixteen billion, six hundred sixty-nine million, five hundred eleven thousand, forty".