670041240400521 has 36 divisors (see below), whose sum is σ = 1064568809309824. Its totient is φ = 405800226429840.

The previous prime is 670041240400513. The next prime is 670041240400559. The reversal of 670041240400521 is 125004042140076.

670041240400521 is a `hidden beast` number, since 6 + 7 + 0 + 0 + 4 + 1 + 240 + 400 + 5 + 2 + 1 = 666.

It is not a de Polignac number, because 670041240400521 - 2³ = 670041240400513 is a prime.

It is a super-3 number, since 3×670041240400521³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670041240400591) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 214641925 + ... + 217741218.

Almost surely, 2^{670041240400521} is an apocalyptic number.

It is an amenable number.

670041240400521 is a deficient number, since it is larger than the sum of its proper divisors (394527568909303).

670041240400521 is a wasteful number, since it uses less digits than its factorization.

670041240400521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432384594 (or 432384580 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

Adding to 670041240400521 its reverse (125004042140076), we get a palindrome (795045282540597).

The spelling of 670041240400521 in words is "six hundred seventy trillion, forty-one billion, two hundred forty million, four hundred thousand, five hundred twenty-one".