766563330 has 64 divisors (see below), whose sum is σ = 1986663168. Its totient is φ = 188179200.

The previous prime is 766563313. The next prime is 766563331. The reversal of 766563330 is 33365667.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (766563331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152355 + ... + 157305.

It is an arithmetic number, because the mean of its divisors is an integer number (31041612).

Almost surely, 2^766563330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 766563330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993331584).

766563330 is an abundant number, since it is smaller than the sum of its proper divisors (1220099838).

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

766563330 is a wasteful number, since it uses less digits than its factorization.

766563330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371.

The product of its (nonzero) digits is 204120, while the sum is 39.

The square root of 766563330 is about 27686.8801059274. The cubic root of 766563330 is about 915.2000040561.

The spelling of 766563330 in words is "seven hundred sixty-six million, five hundred sixty-three thousand, three hundred thirty".