1716625656 has 128 divisors (see below), whose sum is σ = 4919328000. Its totient is φ = 554242176.

The previous prime is 1716625621. The next prime is 1716625657. The reversal of 1716625656 is 6565266171.

1716625656 is a `hidden beast` number, since 1 + 7 + 16 + 625 + 6 + 5 + 6 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (453600) is a multiple of the sum of its prime divisors (1008).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1716625657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2772915 + ... + 2773533.

It is an arithmetic number, because the mean of its divisors is an integer number (38432250).

Almost surely, 2^1716625656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1716625656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2459664000).

1716625656 is an abundant number, since it is smaller than the sum of its proper divisors (3202702344).

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

1716625656 is a wasteful number, since it uses less digits than its factorization.

1716625656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 1008 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 1716625656 is about 41432.1814052796. The cubic root of 1716625656 is about 1197.3612517596.

The spelling of 1716625656 in words is "one billion, seven hundred sixteen million, six hundred twenty-five thousand, six hundred fifty-six".