6699354698016 has 36 divisors (see below), whose sum is σ = 19051289923302. Its totient is φ = 2233118232576.

The previous prime is 6699354698011. The next prime is 6699354698041. The reversal of 6699354698016 is 6108964539966.

6699354698016 is a `hidden beast` number, since 6 + 69 + 9 + 3 + 546 + 9 + 8 + 0 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4519893008016 + 2179461690000 = 2126004^2 + 1476300^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (6699354698011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11630823841 + ... + 11630824416.

Almost surely, 2^{6699354698016} is an apocalyptic number.

It is an amenable number.

6699354698016 is an abundant number, since it is smaller than the sum of its proper divisors (12351935225286).

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

6699354698016 is a wasteful number, since it uses less digits than its factorization.

6699354698016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23261648273 (or 23261648262 counting only the distinct ones).

The product of its (nonzero) digits is 453496320, while the sum is 72.

The spelling of 6699354698016 in words is "six trillion, six hundred ninety-nine billion, three hundred fifty-four million, six hundred ninety-eight thousand, sixteen".