66061056 has 36 divisors (see below), whose sum is σ = 175820792. Its totient is φ = 22020096.

The previous prime is 66061049. The next prime is 66061057. The reversal of 66061056 is 65016066.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (66061057) 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, 42241 + ... + 43776.

Almost surely, 2^66061056 is an apocalyptic number.

It is an amenable number.

66061056 is an abundant number, since it is smaller than the sum of its proper divisors (109759736).

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

66061056 is an equidigital number, since it uses as much as digits as its factorization.

66061056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86036 (or 86022 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 66061056 is about 8127.7952730122. The cubic root of 66061056 is about 404.2485808014.

It can be divided in two parts, 660 and 61056, that added together give a palindrome (61716).

The spelling of 66061056 in words is "sixty-six million, sixty-one thousand, fifty-six".