7780566696 has 32 divisors (see below), whose sum is σ = 22230191040. Its totient is φ = 2223019008.

The previous prime is 7780566691. The next prime is 7780566697. The reversal of 7780566696 is 6966650877.

It is a super-2 number, since 2×7780566696² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7780566691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23156281 + ... + 23156616.

It is an arithmetic number, because the mean of its divisors is an integer number (694693470).

Almost surely, 2^7780566696 is an apocalyptic number.

It is an amenable number.

7780566696 is an abundant number, since it is smaller than the sum of its proper divisors (14449624344).

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

7780566696 is a wasteful number, since it uses less digits than its factorization.

7780566696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46312913 (or 46312909 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 60.

The square root of 7780566696 is about 88207.5206317466. The cubic root of 7780566696 is about 1981.5441051771.

The spelling of 7780566696 in words is "seven billion, seven hundred eighty million, five hundred sixty-six thousand, six hundred ninety-six".