66069070 has 16 divisors (see below), whose sum is σ = 121690800. Its totient is φ = 25812864.

The previous prime is 66069053. The next prime is 66069071. The reversal of 66069070 is 7096066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66069071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76395 + ... + 77254.

It is an arithmetic number, because the mean of its divisors is an integer number (7605675).

Almost surely, 2^66069070 is an apocalyptic number.

66069070 is a deficient number, since it is larger than the sum of its proper divisors (55621730).

66069070 is a wasteful number, since it uses less digits than its factorization.

66069070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153699.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 66069070 is about 8128.2882576838. The cubic root of 66069070 is about 404.2649268774.

The spelling of 66069070 in words is "sixty-six million, sixty-nine thousand, seventy".