70666612 has 6 divisors (see below), whose sum is σ = 123666578. Its totient is φ = 35333304.

The previous prime is 70666579. The next prime is 70666613. The reversal of 70666612 is 21666607.

It can be written as a sum of positive squares in only one way, i.e., 70660836 + 5776 = 8406^2 + 76^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70666613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8833323 + ... + 8833330.

Almost surely, 2^70666612 is an apocalyptic number.

It is an amenable number.

70666612 is a deficient number, since it is larger than the sum of its proper divisors (52999966).

70666612 is a wasteful number, since it uses less digits than its factorization.

70666612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17666657 (or 17666655 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 70666612 is about 8406.3435571002. The cubic root of 70666612 is about 413.4326362748.

The spelling of 70666612 in words is "seventy million, six hundred sixty-six thousand, six hundred twelve".