13551615226 has 8 divisors (see below), whose sum is σ = 21211223904. Its totient is φ = 6481207260.

The previous prime is 13551615223. The next prime is 13551615251. The reversal of 13551615226 is 62251615531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13551615223) 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, 147300120 + ... + 147300211.

It is an arithmetic number, because the mean of its divisors is an integer number (2651402988).

Almost surely, 2^13551615226 is an apocalyptic number.

13551615226 is a deficient number, since it is larger than the sum of its proper divisors (7659608678).

13551615226 is a wasteful number, since it uses less digits than its factorization.

13551615226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294600356.

The product of its digits is 54000, while the sum is 37.

The spelling of 13551615226 in words is "thirteen billion, five hundred fifty-one million, six hundred fifteen thousand, two hundred twenty-six".