13551217220270 has 32 divisors (see below), whose sum is σ = 24736101921216. Its totient is φ = 5344064454400.

The previous prime is 13551217220239. The next prime is 13551217220347. The reversal of 13551217220270 is 7202271215531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91502522 + ... + 91650498.

It is an arithmetic number, because the mean of its divisors is an integer number (773003185038).

Almost surely, 2^{13551217220270} is an apocalyptic number.

13551217220270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13551217220270 is a deficient number, since it is larger than the sum of its proper divisors (11184884700946).

13551217220270 is a wasteful number, since it uses less digits than its factorization.

13551217220270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277036.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 13551217220270 in words is "thirteen trillion, five hundred fifty-one billion, two hundred seventeen million, two hundred twenty thousand, two hundred seventy".