226645511377 has 4 divisors (see below), whose sum is σ = 226648279396. Its totient is φ = 226642743360.

The previous prime is 226645511297. The next prime is 226645511383. The reversal of 226645511377 is 773115546622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 773115546622 = 2 ⋅386557773311.

It can be written as a sum of positive squares in 2 ways, for example, as 106516724161 + 120128787216 = 326369^2 + 346596^2 .

It is a cyclic number.

It is not a de Polignac number, because 226645511377 - 2¹¹ = 226645509329 is a prime.

It is a super-2 number, since 2×226645511377² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226645511377.

It is not an unprimeable number, because it can be changed into a prime (226645541377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1257324 + ... + 1426237.

It is an arithmetic number, because the mean of its divisors is an integer number (56662069849).

Almost surely, 2^226645511377 is an apocalyptic number.

It is an amenable number.

226645511377 is a deficient number, since it is larger than the sum of its proper divisors (2768019).

226645511377 is an equidigital number, since it uses as much as digits as its factorization.

226645511377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768018.

The product of its digits is 2116800, while the sum is 49.

The spelling of 226645511377 in words is "two hundred twenty-six billion, six hundred forty-five million, five hundred eleven thousand, three hundred seventy-seven".