18226740202151 has 4 divisors (see below), whose sum is σ = 19628797140792. Its totient is φ = 16824683263512.

The previous prime is 18226740202147. The next prime is 18226740202213. The reversal of 18226740202151 is 15120204762281.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18226740202151 - 2² = 18226740202147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18226740202099 and 18226740202108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18226740202351) 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, 701028469301 + ... + 701028469326.

It is an arithmetic number, because the mean of its divisors is an integer number (4907199285198).

Almost surely, 2^{18226740202151} is an apocalyptic number.

18226740202151 is a deficient number, since it is larger than the sum of its proper divisors (1402056938641).

18226740202151 is a wasteful number, since it uses less digits than its factorization.

18226740202151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402056938640.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 18226740202151 in words is "eighteen trillion, two hundred twenty-six billion, seven hundred forty million, two hundred two thousand, one hundred fifty-one".