866526045 has 128 divisors (see below), whose sum is σ = 1799884800. Its totient is φ = 352800000.

The previous prime is 866526029. The next prime is 866526071. The reversal of 866526045 is 540625668.

It is not a de Polignac number, because 866526045 - 2⁴ = 866526029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 866525988 and 866526006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3452170 + ... + 3452420.

It is an arithmetic number, because the mean of its divisors is an integer number (14061600).

Almost surely, 2^866526045 is an apocalyptic number.

It is an amenable number.

866526045 is an abundant number, since it is smaller than the sum of its proper divisors (933358755).

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

866526045 is a wasteful number, since it uses less digits than its factorization.

866526045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 866526045 is about 29436.8144506161. The cubic root of 866526045 is about 953.3679332670.

The spelling of 866526045 in words is "eight hundred sixty-six million, five hundred twenty-six thousand, forty-five".