7665022820 has 48 divisors (see below), whose sum is σ = 19811140608. Its totient is φ = 2425852800.

The previous prime is 7665022817. The next prime is 7665022829. The reversal of 7665022820 is 282205667.

It is a super-2 number, since 2×7665022820² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7665022829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103956 + ... + 2107595.

It is an arithmetic number, because the mean of its divisors is an integer number (412732096).

Almost surely, 2^7665022820 is an apocalyptic number.

7665022820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7665022820 is an abundant number, since it is smaller than the sum of its proper divisors (12146117788).

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

7665022820 is a wasteful number, since it uses less digits than its factorization.

7665022820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211580 (or 4211578 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 7665022820 is about 87550.1160478957. The cubic root of 7665022820 is about 1971.6862935241.

The spelling of 7665022820 in words is "seven billion, six hundred sixty-five million, twenty-two thousand, eight hundred twenty".