641226698553 has 8 divisors (see below), whose sum is σ = 977107350208. Its totient is φ = 366415256304.

The previous prime is 641226698549. The next prime is 641226698557. The reversal of 641226698553 is 355896622146.

It is an interprime number because it is at equal distance from previous prime (641226698549) and next prime (641226698557).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 641226698553 - 2² = 641226698549 is a prime.

It is a super-2 number, since 2×641226698553² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 641226698493 and 641226698502.

It is not an unprimeable number, because it can be changed into a prime (641226698557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15267302326 + ... + 15267302367.

It is an arithmetic number, because the mean of its divisors is an integer number (122138418776).

Almost surely, 2^641226698553 is an apocalyptic number.

It is an amenable number.

641226698553 is a deficient number, since it is larger than the sum of its proper divisors (335880651655).

641226698553 is a wasteful number, since it uses less digits than its factorization.

641226698553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30534604703.

The product of its digits is 18662400, while the sum is 57.

The spelling of 641226698553 in words is "six hundred forty-one billion, two hundred twenty-six million, six hundred ninety-eight thousand, five hundred fifty-three".