16767406420 has 48 divisors (see below), whose sum is σ = 35614348560. Its totient is φ = 6630395904.

The previous prime is 16767406417. The next prime is 16767406471. The reversal of 16767406420 is 2460476761.

It can be written as a sum of positive squares in 8 ways, for example, as 100080016 + 16667326404 = 10004^2 + 129102^2 .

It is a super-2 number, since 2×16767406420² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1929846 + ... + 1938514.

It is an arithmetic number, because the mean of its divisors is an integer number (741965595).

Almost surely, 2^16767406420 is an apocalyptic number.

16767406420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16767406420 is an abundant number, since it is smaller than the sum of its proper divisors (18846942140).

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

16767406420 is a wasteful number, since it uses less digits than its factorization.

16767406420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9772 (or 9770 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 16767406420 in words is "sixteen billion, seven hundred sixty-seven million, four hundred six thousand, four hundred twenty".