66112532 has 12 divisors (see below), whose sum is σ = 117594036. Its totient is φ = 32514240.

The previous prime is 66112531. The next prime is 66112537. The reversal of 66112532 is 23521166.

It can be written as a sum of positive squares in 2 ways, for example, as 1406596 + 64705936 = 1186^2 + 8044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66112531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135233 + ... + 135720.

It is an arithmetic number, because the mean of its divisors is an integer number (9799503).

Almost surely, 2^66112532 is an apocalyptic number.

It is an amenable number.

66112532 is a deficient number, since it is larger than the sum of its proper divisors (51481504).

66112532 is a wasteful number, since it uses less digits than its factorization.

66112532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271018 (or 271016 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 66112532 is about 8130.9613207787. The cubic root of 66112532 is about 404.3535528711.

Adding to 66112532 its reverse (23521166), we get a palindrome (89633698).

The spelling of 66112532 in words is "sixty-six million, one hundred twelve thousand, five hundred thirty-two".