66526086 has 16 divisors (see below), whose sum is σ = 145147968. Its totient is φ = 20159400.

The previous prime is 66526069. The next prime is 66526091. The reversal of 66526086 is 68062566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503920 + ... + 504051.

It is an arithmetic number, because the mean of its divisors is an integer number (9071748).

Almost surely, 2^66526086 is an apocalyptic number.

66526086 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66526086 is an abundant number, since it is smaller than the sum of its proper divisors (78621882).

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

66526086 is a wasteful number, since it uses less digits than its factorization.

66526086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007987.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 66526086 is about 8156.3524936089. The cubic root of 66526086 is about 405.1949191293.

The spelling of 66526086 in words is "sixty-six million, five hundred twenty-six thousand, eighty-six".