70666315 has 4 divisors (see below), whose sum is σ = 84799584. Its totient is φ = 56533048.

The previous prime is 70666303. The next prime is 70666361. The reversal of 70666315 is 51366607.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51366607 = 2663 ⋅19289.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70666315 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7066627 + ... + 7066636.

It is an arithmetic number, because the mean of its divisors is an integer number (21199896).

Almost surely, 2^70666315 is an apocalyptic number.

70666315 is a deficient number, since it is larger than the sum of its proper divisors (14133269).

70666315 is a wasteful number, since it uses less digits than its factorization.

70666315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14133268.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 70666315 is about 8406.3258918507. The cubic root of 70666315 is about 413.4320570778.

The spelling of 70666315 in words is "seventy million, six hundred sixty-six thousand, three hundred fifteen".