7626705660 has 576 divisors, whose sum is σ = 28889183232. Its totient is φ = 1652742144.

The previous prime is 7626705649. The next prime is 7626705701. The reversal of 7626705660 is 665076267.

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 191 ways as a sum of consecutive naturals, for example, 91887979 + ... + 91888061.

It is an arithmetic number, because the mean of its divisors is an integer number (50154832).

Almost surely, 2^7626705660 is an apocalyptic number.

7626705660 is a gapful number since it is divisible by the number (70) 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 7626705660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14444591616).

7626705660 is an abundant number, since it is smaller than the sum of its proper divisors (21262477572).

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

7626705660 is a wasteful number, since it uses less digits than its factorization.

7626705660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 7626705660 is about 87331.0120174958. The cubic root of 7626705660 is about 1968.3953418286.

The spelling of 7626705660 in words is "seven billion, six hundred twenty-six million, seven hundred five thousand, six hundred sixty".