66061754 has 8 divisors (see below), whose sum is σ = 108101088. Its totient is φ = 30028060.

The previous prime is 66061747. The next prime is 66061757. The reversal of 66061754 is 45716066.

66061754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (66061757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501382 + ... + 1501425.

It is an arithmetic number, because the mean of its divisors is an integer number (13512636).

Almost surely, 2^66061754 is an apocalyptic number.

66061754 is a deficient number, since it is larger than the sum of its proper divisors (42039334).

66061754 is a wasteful number, since it uses less digits than its factorization.

66061754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002820.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 66061754 is about 8127.8382119725. The cubic root of 66061754 is about 404.2500045576.

The spelling of 66061754 in words is "sixty-six million, sixty-one thousand, seven hundred fifty-four".