66526089 has 8 divisors (see below), whose sum is σ = 101373120. Its totient is φ = 38014896.

The previous prime is 66526069. The next prime is 66526091. The reversal of 66526089 is 98062566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66526089 - 2⁷ = 66525961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66526089.

It is not an unprimeable number, because it can be changed into a prime (66526039) 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, 1583934 + ... + 1583975.

It is an arithmetic number, because the mean of its divisors is an integer number (12671640).

Almost surely, 2^66526089 is an apocalyptic number.

It is an amenable number.

66526089 is a deficient number, since it is larger than the sum of its proper divisors (34847031).

66526089 is a wasteful number, since it uses less digits than its factorization.

66526089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167919.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 66526089 is about 8156.3526775146. The cubic root of 66526089 is about 405.1949252200.

The spelling of 66526089 in words is "sixty-six million, five hundred twenty-six thousand, eighty-nine".