226515742245 has 80 divisors (see below), whose sum is σ = 437505192432. Its totient is φ = 111459317760.

The previous prime is 226515742207. The next prime is 226515742267. The reversal of 226515742245 is 542247515622.

226515742245 is a `hidden beast` number, since 2 + 2 + 6 + 51 + 574 + 2 + 24 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 752020929 + 225763721316 = 27423^2 + 475146^2 .

It is not a de Polignac number, because 226515742245 - 2¹⁴ = 226515725861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 226515742245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11641725 + ... + 11661165.

Almost surely, 2^226515742245 is an apocalyptic number.

It is an amenable number.

226515742245 is a deficient number, since it is larger than the sum of its proper divisors (210989450187).

226515742245 is a wasteful number, since it uses less digits than its factorization.

226515742245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21684 (or 21675 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 45.

The spelling of 226515742245 in words is "two hundred twenty-six billion, five hundred fifteen million, seven hundred forty-two thousand, two hundred forty-five".