66061934 has 32 divisors (see below), whose sum is σ = 106389504. Its totient is φ = 30697920.

The previous prime is 66061927. The next prime is 66061937. The reversal of 66061934 is 43916066.

66061934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66061894 and 66061903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66061937) 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 15 ways as a sum of consecutive naturals, for example, 345779 + ... + 345969.

It is an arithmetic number, because the mean of its divisors is an integer number (3324672).

Almost surely, 2^66061934 is an apocalyptic number.

66061934 is a deficient number, since it is larger than the sum of its proper divisors (40327570).

66061934 is a wasteful number, since it uses less digits than its factorization.

66061934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 66061934 is about 8127.8492850200. The cubic root of 66061934 is about 404.2503717137.

The spelling of 66061934 in words is "sixty-six million, sixty-one thousand, nine hundred thirty-four".