16840072212 has 12 divisors (see below), whose sum is σ = 39293501856. Its totient is φ = 5613357400.

The previous prime is 16840072169. The next prime is 16840072217. The reversal of 16840072212 is 21227004861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16840072217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701669664 + ... + 701669687.

It is an arithmetic number, because the mean of its divisors is an integer number (3274458488).

Almost surely, 2^16840072212 is an apocalyptic number.

16840072212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16840072212 is an abundant number, since it is smaller than the sum of its proper divisors (22453429644).

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

16840072212 is a wasteful number, since it uses less digits than its factorization.

16840072212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403339358 (or 1403339356 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 16840072212 in words is "sixteen billion, eight hundred forty million, seventy-two thousand, two hundred twelve".