66067734 has 16 divisors (see below), whose sum is σ = 133349040. Its totient is φ = 21820320.

The previous prime is 66067721. The next prime is 66067741. The reversal of 66067734 is 43776066.

66067734 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 = 66067692 and 66067701.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 49857 + ... + 51164.

It is an arithmetic number, because the mean of its divisors is an integer number (8334315).

Almost surely, 2^66067734 is an apocalyptic number.

66067734 is an abundant number, since it is smaller than the sum of its proper divisors (67281306).

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

66067734 is a wasteful number, since it uses less digits than its factorization.

66067734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101135.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 66067734 is about 8128.2060751435. The cubic root of 66067734 is about 404.2622019433.

The spelling of 66067734 in words is "sixty-six million, sixty-seven thousand, seven hundred thirty-four".