675656266401 has 32 divisors (see below), whose sum is σ = 1028255886720. Its totient is φ = 438165329472.

The previous prime is 675656266391. The next prime is 675656266433. The reversal of 675656266401 is 104662656576.

675656266401 is a `hidden beast` number, since 6 + 7 + 5 + 6 + 5 + 626 + 6 + 4 + 0 + 1 = 666.

It is not a de Polignac number, because 675656266401 - 2⁷ = 675656266273 is a prime.

It is a super-2 number, since 2×675656266401² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (675656266501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4524931 + ... + 4671863.

It is an arithmetic number, because the mean of its divisors is an integer number (32132996460).

Almost surely, 2^675656266401 is an apocalyptic number.

It is an amenable number.

675656266401 is a deficient number, since it is larger than the sum of its proper divisors (352599620319).

675656266401 is a wasteful number, since it uses less digits than its factorization.

675656266401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151582 (or 151576 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 675656266401 in words is "six hundred seventy-five billion, six hundred fifty-six million, two hundred sixty-six thousand, four hundred one".