7566380681 has 8 divisors (see below), whose sum is σ = 7728885120. Its totient is φ = 7403939568.

The previous prime is 7566380671. The next prime is 7566380683. The reversal of 7566380681 is 1860836657.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7566380681 - 2¹⁴ = 7566364297 is a prime.

It is a super-2 number, since 2×7566380681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7566380683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287195 + ... + 312431.

It is an arithmetic number, because the mean of its divisors is an integer number (966110640).

Almost surely, 2^7566380681 is an apocalyptic number.

It is an amenable number.

7566380681 is a deficient number, since it is larger than the sum of its proper divisors (162504439).

7566380681 is a wasteful number, since it uses less digits than its factorization.

7566380681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31663.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 7566380681 is about 86984.9451399494. The cubic root of 7566380681 is about 1963.1917903852.

The spelling of 7566380681 in words is "seven billion, five hundred sixty-six million, three hundred eighty thousand, six hundred eighty-one".