670618209816576 has 2496 divisors, whose sum is σ = 2549427125760000. Its totient is φ = 172982018506752.

The previous prime is 670618209816559. The next prime is 670618209816589. The reversal of 670618209816576 is 675618902816076.

670618209816576 is a `hidden beast` number, since 6 + 7 + 0 + 6 + 18 + 20 + 9 + 8 + 16 + 576 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 235883997811 + ... + 235884000653.

Almost surely, 2^{670618209816576} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670618209816576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274713562880000).

670618209816576 is an abundant number, since it is smaller than the sum of its proper divisors (1878808915943424).

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

670618209816576 is a wasteful number, since it uses less digits than its factorization.

670618209816576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017 (or 2982 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 72.

The spelling of 670618209816576 in words is "six hundred seventy trillion, six hundred eighteen billion, two hundred nine million, eight hundred sixteen thousand, five hundred seventy-six".