551243043151 has 4 divisors (see below), whose sum is σ = 551325583600. Its totient is φ = 551160502704.

The previous prime is 551243043089. The next prime is 551243043209. The reversal of 551243043151 is 151340342155.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551243043151 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 (551243043551) 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, 41260206 + ... + 41273563.

It is an arithmetic number, because the mean of its divisors is an integer number (137831395900).

Almost surely, 2^551243043151 is an apocalyptic number.

551243043151 is a deficient number, since it is larger than the sum of its proper divisors (82540449).

551243043151 is an equidigital number, since it uses as much as digits as its factorization.

551243043151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82540448.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 551243043151 in words is "five hundred fifty-one billion, two hundred forty-three million, forty-three thousand, one hundred fifty-one".