641017153651 has 32 divisors (see below), whose sum is σ = 774901739520. Its totient is φ = 517993898400.

The previous prime is 641017153639. The next prime is 641017153717. The reversal of 641017153651 is 156351710146.

It is a cyclic number.

It is not a de Polignac number, because 641017153651 - 2⁵ = 641017153619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (641017153951) 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, 98751516 + ... + 98758006.

It is an arithmetic number, because the mean of its divisors is an integer number (24215679360).

Almost surely, 2^641017153651 is an apocalyptic number.

641017153651 is a deficient number, since it is larger than the sum of its proper divisors (133884585869).

641017153651 is a wasteful number, since it uses less digits than its factorization.

641017153651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10015.

The product of its (nonzero) digits is 75600, while the sum is 40.

Adding to 641017153651 its reverse (156351710146), we get a palindrome (797368863797).

The spelling of 641017153651 in words is "six hundred forty-one billion, seventeen million, one hundred fifty-three thousand, six hundred fifty-one".