16709172480 has 2160 divisors, whose sum is σ = 85261486464. Its totient is φ = 3065610240.

The previous prime is 16709172461. The next prime is 16709172499. The reversal of 16709172480 is 8427190761.

It is a happy number.

16709172480 is a `hidden beast` number, since 16 + 7 + 0 + 91 + 72 + 480 = 666.

It is an interprime number because it is at equal distance from previous prime (16709172461) and next prime (16709172499).

It is a tau number, because it is divible by the number of its divisors (2160).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 726485749 + ... + 726485771.

Almost surely, 2^16709172480 is an apocalyptic number.

16709172480 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 16709172480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42630743232).

16709172480 is an abundant number, since it is smaller than the sum of its proper divisors (68552313984).

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

16709172480 is a wasteful number, since it uses less digits than its factorization.

16709172480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 16709172480 in words is "sixteen billion, seven hundred nine million, one hundred seventy-two thousand, four hundred eighty".