6617605722 has 96 divisors (see below), whose sum is σ = 17453217600. Its totient is φ = 1653426432.

The previous prime is 6617605721. The next prime is 6617605727. The reversal of 6617605722 is 2275067166.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (6617605721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27054 + ... + 118182.

It is an arithmetic number, because the mean of its divisors is an integer number (181804350).

Almost surely, 2^6617605722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6617605722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8726608800).

6617605722 is an abundant number, since it is smaller than the sum of its proper divisors (10835611878).

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

6617605722 is a wasteful number, since it uses less digits than its factorization.

6617605722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91180 (or 91173 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 6617605722 is about 81348.6676104778. The cubic root of 6617605722 is about 1877.4438743201.

The spelling of 6617605722 in words is "six billion, six hundred seventeen million, six hundred five thousand, seven hundred twenty-two".