16699864501152 has 432 divisors, whose sum is σ = 59233870200960. Its totient is φ = 4433870278656.

The previous prime is 16699864501069. The next prime is 16699864501193. The reversal of 16699864501152 is 25110546899661.

16699864501152 is a `hidden beast` number, since 1 + 6 + 6 + 99 + 86 + 450 + 1 + 15 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 16699864501152.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 18511843 + ... + 19392989.

It is an arithmetic number, because the mean of its divisors is an integer number (137115440280).

Almost surely, 2^{16699864501152} is an apocalyptic number.

16699864501152 is a gapful number since it is divisible by the number (12) 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 16699864501152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29616935100480).

16699864501152 is an abundant number, since it is smaller than the sum of its proper divisors (42534005699808).

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

16699864501152 is a wasteful number, since it uses less digits than its factorization.

16699864501152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881273 (or 881255 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 16699864501152 in words is "sixteen trillion, six hundred ninety-nine billion, eight hundred sixty-four million, five hundred one thousand, one hundred fifty-two".