70662655978 has 8 divisors (see below), whose sum is σ = 106984582272. Its totient is φ = 35001128556.

The previous prime is 70662655967. The next prime is 70662656011. The reversal of 70662655978 is 87955626607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165099450 + ... + 165099877.

It is an arithmetic number, because the mean of its divisors is an integer number (13373072784).

Almost surely, 2^70662655978 is an apocalyptic number.

70662655978 is a deficient number, since it is larger than the sum of its proper divisors (36321926294).

70662655978 is a wasteful number, since it uses less digits than its factorization.

70662655978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330199436.

The product of its (nonzero) digits is 38102400, while the sum is 61.

The spelling of 70662655978 in words is "seventy billion, six hundred sixty-two million, six hundred fifty-five thousand, nine hundred seventy-eight".