226659424956621 has 16 divisors (see below), whose sum is σ = 311117719659648. Its totient is φ = 146673107985600.

The previous prime is 226659424956619. The next prime is 226659424956661. The reversal of 226659424956621 is 126659424956622.

It is not a de Polignac number, because 226659424956621 - 2¹ = 226659424956619 is a prime.

It is a super-2 number, since 2×226659424956621² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226659424956661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2425103865 + ... + 2425197326.

It is an arithmetic number, because the mean of its divisors is an integer number (19444857478728).

Almost surely, 2^{226659424956621} is an apocalyptic number.

It is an amenable number.

226659424956621 is a deficient number, since it is larger than the sum of its proper divisors (84458294703027).

226659424956621 is a wasteful number, since it uses less digits than its factorization.

226659424956621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850301652.

The product of its digits is 671846400, while the sum is 69.

Subtracting from 226659424956621 its reverse (126659424956622), we obtain a palindrome (99999999999999).

The spelling of 226659424956621 in words is "two hundred twenty-six trillion, six hundred fifty-nine billion, four hundred twenty-four million, nine hundred fifty-six thousand, six hundred twenty-one".