66118527 has 24 divisors (see below), whose sum is σ = 99524880. Its totient is φ = 42261120.

The previous prime is 66118513. The next prime is 66118541. The reversal of 66118527 is 72581166.

It is an interprime number because it is at equal distance from previous prime (66118513) and next prime (66118541).

It is not a de Polignac number, because 66118527 - 2¹⁴ = 66102143 is a prime.

It is a super-2 number, since 2×66118527² = 8743319225299458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66118491 and 66118500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66118597) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20253 + ... + 23289.

It is an arithmetic number, because the mean of its divisors is an integer number (4146870).

Almost surely, 2^66118527 is an apocalyptic number.

66118527 is a deficient number, since it is larger than the sum of its proper divisors (33406353).

66118527 is a wasteful number, since it uses less digits than its factorization.

66118527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143 (or 3140 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 66118527 is about 8131.3299650180. The cubic root of 66118527 is about 404.3657745897.

The spelling of 66118527 in words is "sixty-six million, one hundred eighteen thousand, five hundred twenty-seven".