670121662187816 has 16 divisors (see below), whose sum is σ = 1257934058812800. Its totient is φ = 334672579837744.

The previous prime is 670121662187729. The next prime is 670121662187843. The reversal of 670121662187816 is 618781266121076.

It is a super-2 number, since 2×670121662187816² (a number of 30 digits) contains 22 as substring.

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, 48531399686 + ... + 48531413493.

It is an arithmetic number, because the mean of its divisors is an integer number (78620878675800).

Almost surely, 2^{670121662187816} is an apocalyptic number.

It is an amenable number.

670121662187816 is a deficient number, since it is larger than the sum of its proper divisors (587812396624984).

670121662187816 is a wasteful number, since it uses less digits than its factorization.

670121662187816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97062814048 (or 97062814044 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 62.

The spelling of 670121662187816 in words is "six hundred seventy trillion, one hundred twenty-one billion, six hundred sixty-two million, one hundred eighty-seven thousand, eight hundred sixteen".