16726702640 has 160 divisors (see below), whose sum is σ = 40332847104. Its totient is φ = 6448619520.

The previous prime is 16726702633. The next prime is 16726702661. The reversal of 16726702640 is 4620762761.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84907022 + ... + 84907218.

Almost surely, 2^16726702640 is an apocalyptic number.

16726702640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16726702640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20166423552).

16726702640 is an abundant number, since it is smaller than the sum of its proper divisors (23606144464).

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

16726702640 is a wasteful number, since it uses less digits than its factorization.

16726702640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 16726702640 in words is "sixteen billion, seven hundred twenty-six million, seven hundred two thousand, six hundred forty".