16720743169812 has 96 divisors (see below), whose sum is σ = 45068203716480. Its totient is φ = 4768556728320.

The previous prime is 16720743169783. The next prime is 16720743169841. The reversal of 16720743169812 is 21896134702761.

It is an interprime number because it is at equal distance from previous prime (16720743169783) and next prime (16720743169841).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39212778 + ... + 39636894.

It is an arithmetic number, because the mean of its divisors is an integer number (469460455380).

Almost surely, 2^{16720743169812} is an apocalyptic number.

16720743169812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16720743169812 is an abundant number, since it is smaller than the sum of its proper divisors (28347460546668).

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

16720743169812 is a wasteful number, since it uses less digits than its factorization.

16720743169812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441721 (or 441719 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 16720743169812 in words is "sixteen trillion, seven hundred twenty billion, seven hundred forty-three million, one hundred sixty-nine thousand, eight hundred twelve".