70666891356 has 48 divisors (see below), whose sum is σ = 168939606528. Its totient is φ = 22977225600.

The previous prime is 70666891343. The next prime is 70666891363. The reversal of 70666891356 is 65319866607.

It is a junction number, because it is equal to n+sod(n) for n = 70666891296 and 70666891305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5075901 + ... + 5089803.

It is an arithmetic number, because the mean of its divisors is an integer number (3519575136).

Almost surely, 2^70666891356 is an apocalyptic number.

It is an amenable number.

70666891356 is an abundant number, since it is smaller than the sum of its proper divisors (98272715172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70666891356 is a wasteful number, since it uses less digits than its factorization.

70666891356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24282 (or 24280 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 70666891356 in words is "seventy billion, six hundred sixty-six million, eight hundred ninety-one thousand, three hundred fifty-six".