7666470440 has 16 divisors (see below), whose sum is σ = 17249558580. Its totient is φ = 3066588160.

The previous prime is 7666470437. The next prime is 7666470451. The reversal of 7666470440 is 440746667.

It can be written as a sum of positive squares in 2 ways, for example, as 7495750084 + 170720356 = 86578^2 + 13066^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7666470391 and 7666470400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95830841 + ... + 95830920.

Almost surely, 2^7666470440 is an apocalyptic number.

It is an amenable number.

7666470440 is an abundant number, since it is smaller than the sum of its proper divisors (9583088140).

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

7666470440 is a wasteful number, since it uses less digits than its factorization.

7666470440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191661772 (or 191661768 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 44.

The square root of 7666470440 is about 87558.3830366916. The cubic root of 7666470440 is about 1971.8104102603.

The spelling of 7666470440 in words is "seven billion, six hundred sixty-six million, four hundred seventy thousand, four hundred forty".