66760070 has 24 divisors (see below), whose sum is σ = 130126176. Its totient is φ = 24649248.

The previous prime is 66760063. The next prime is 66760079. The reversal of 66760070 is 7006766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66760079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18062 + ... + 21441.

It is an arithmetic number, because the mean of its divisors is an integer number (5421924).

Almost surely, 2^66760070 is an apocalyptic number.

66760070 is a deficient number, since it is larger than the sum of its proper divisors (63366106).

66760070 is a wasteful number, since it uses less digits than its factorization.

66760070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39536 (or 39523 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 66760070 is about 8170.6835699346. The cubic root of 66760070 is about 405.6694106501.

The spelling of 66760070 in words is "sixty-six million, seven hundred sixty thousand, seventy".