226521701613 has 12 divisors (see below), whose sum is σ = 327204890428. Its totient is φ = 151011293760.

The previous prime is 226521701489. The next prime is 226521701617. The reversal of 226521701613 is 316107125622.

226521701613 is a `hidden beast` number, since 2 + 2 + 6 + 521 + 70 + 1 + 61 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 185139157284 + 41382544329 = 430278^2 + 203427^2 .

It is not a de Polignac number, because 226521701613 - 2⁹ = 226521701101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226521701617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237681 + ... + 713817.

Almost surely, 2^226521701613 is an apocalyptic number.

It is an amenable number.

226521701613 is a deficient number, since it is larger than the sum of its proper divisors (100683188815).

226521701613 is a wasteful number, since it uses less digits than its factorization.

226521701613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529004 (or 529001 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 226521701613 in words is "two hundred twenty-six billion, five hundred twenty-one million, seven hundred one thousand, six hundred thirteen".