70671651506 has 16 divisors (see below), whose sum is σ = 106117928280. Its totient is φ = 35299031040.

The previous prime is 70671651469. The next prime is 70671651509. The reversal of 70671651506 is 60515617607.

It can be written as a sum of positive squares in 4 ways, for example, as 9088762225 + 61582889281 = 95335^2 + 248159^2 .

It is not an unprimeable number, because it can be changed into a prime (70671651509) 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, 11813036 + ... + 11819016.

Almost surely, 2^70671651506 is an apocalyptic number.

70671651506 is a deficient number, since it is larger than the sum of its proper divisors (35446276774).

70671651506 is a wasteful number, since it uses less digits than its factorization.

70671651506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11149.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 70671651506 in words is "seventy billion, six hundred seventy-one million, six hundred fifty-one thousand, five hundred six".