66733070 has 16 divisors (see below), whose sum is σ = 121223520. Its totient is φ = 26447904.

The previous prime is 66733067. The next prime is 66733087. The reversal of 66733070 is 7033766.

It is a happy number.

66733070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 29522 + ... + 31701.

It is an arithmetic number, because the mean of its divisors is an integer number (7576470).

Almost surely, 2^66733070 is an apocalyptic number.

66733070 is a deficient number, since it is larger than the sum of its proper divisors (54490450).

66733070 is a wasteful number, since it uses less digits than its factorization.

66733070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61339.

The product of its (nonzero) digits is 15876, while the sum is 32.

The square root of 66733070 is about 8169.0311543047. The cubic root of 66733070 is about 405.6147145270.

The spelling of 66733070 in words is "sixty-six million, seven hundred thirty-three thousand, seventy".