641653611363 has 24 divisors (see below), whose sum is σ = 964900158768. Its totient is φ = 426104561664.

The previous prime is 641653611337. The next prime is 641653611419. The reversal of 641653611363 is 363116356146.

641653611363 is a `hidden beast` number, since 6 + 41 + 6 + 536 + 1 + 13 + 63 = 666.

It is not a de Polignac number, because 641653611363 - 2⁵ = 641653611331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (641653610363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5074806 + ... + 5199707.

It is an arithmetic number, because the mean of its divisors is an integer number (40204173282).

Almost surely, 2^641653611363 is an apocalyptic number.

641653611363 is a deficient number, since it is larger than the sum of its proper divisors (323246547405).

641653611363 is a wasteful number, since it uses less digits than its factorization.

641653611363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274785 (or 10274773 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The spelling of 641653611363 in words is "six hundred forty-one billion, six hundred fifty-three million, six hundred eleven thousand, three hundred sixty-three".