16706502072 has 320 divisors, whose sum is σ = 54618490080. Its totient is φ = 4723826688.

The previous prime is 16706502067. The next prime is 16706502073. The reversal of 16706502072 is 27020560761.

16706502072 is a `hidden beast` number, since 16 + 70 + 6 + 502 + 0 + 72 = 666.

It is a super-2 number, since 2×16706502072² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16706502073) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6156588 + ... + 6159300.

Almost surely, 2^16706502072 is an apocalyptic number.

16706502072 is a gapful number since it is divisible by the number (12) 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 16706502072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27309245040).

16706502072 is an abundant number, since it is smaller than the sum of its proper divisors (37911988008).

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

16706502072 is a wasteful number, since it uses less digits than its factorization.

16706502072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804 (or 2791 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 16706502072 in words is "sixteen billion, seven hundred six million, five hundred two thousand, seventy-two".