2016668386722 has 48 divisors (see below), whose sum is σ = 4444734490560. Its totient is φ = 609540565920.

The previous prime is 2016668386721. The next prime is 2016668386727. The reversal of 2016668386722 is 2276838666102.

It is not an unprimeable number, because it can be changed into a prime (2016668386721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3287998 + ... + 3852825.

It is an arithmetic number, because the mean of its divisors is an integer number (92598635220).

Almost surely, 2^{2016668386722} is an apocalyptic number.

2016668386722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2016668386722 is an abundant number, since it is smaller than the sum of its proper divisors (2428066103838).

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

2016668386722 is a wasteful number, since it uses less digits than its factorization.

2016668386722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7141239 (or 7141228 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 2016668386722 in words is "two trillion, sixteen billion, six hundred sixty-eight million, three hundred eighty-six thousand, seven hundred twenty-two".