551271145643 has 8 divisors (see below), whose sum is σ = 572036357376. Its totient is φ = 530867068200.

The previous prime is 551271145631. The next prime is 551271145651. The reversal of 551271145643 is 346541172155.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 551271145643 - 2⁴ = 551271145627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551271145594 and 551271145603.

It is not an unprimeable number, because it can be changed into a prime (551271145613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90280463 + ... + 90286568.

It is an arithmetic number, because the mean of its divisors is an integer number (71504544672).

Almost surely, 2^551271145643 is an apocalyptic number.

551271145643 is a deficient number, since it is larger than the sum of its proper divisors (20765211733).

551271145643 is a wasteful number, since it uses less digits than its factorization.

551271145643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180567145.

The product of its digits is 504000, while the sum is 44.

The spelling of 551271145643 in words is "five hundred fifty-one billion, two hundred seventy-one million, one hundred forty-five thousand, six hundred forty-three".