7765000220 has 12 divisors (see below), whose sum is σ = 16306500504. Its totient is φ = 3106000080.

The previous prime is 7765000219. The next prime is 7765000247. The reversal of 7765000220 is 220005677.

It is a happy number.

It is a congruent number.

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, 194124986 + ... + 194125025.

It is an arithmetic number, because the mean of its divisors is an integer number (1358875042).

Almost surely, 2^7765000220 is an apocalyptic number.

It is an amenable number.

7765000220 is an abundant number, since it is smaller than the sum of its proper divisors (8541500284).

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

7765000220 is a wasteful number, since it uses less digits than its factorization.

7765000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388250020 (or 388250018 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 7765000220 is about 88119.2386485494. The cubic root of 7765000220 is about 1980.2217399523.

Adding to 7765000220 its reverse (220005677), we get a palindrome (7985005897).

The spelling of 7765000220 in words is "seven billion, seven hundred sixty-five million, two hundred twenty", and thus it is an aban number.