551401064123 has 24 divisors (see below), whose sum is σ = 694797209568. Its totient is φ = 426127347072.

The previous prime is 551401064099. The next prime is 551401064183. The reversal of 551401064123 is 321460104155.

It is not a de Polignac number, because 551401064123 - 2⁶ = 551401064059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551401064123.

It is not an unprimeable number, because it can be changed into a prime (551401064183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1470290 + ... + 1806807.

It is an arithmetic number, because the mean of its divisors is an integer number (28949883732).

Almost surely, 2^551401064123 is an apocalyptic number.

551401064123 is a deficient number, since it is larger than the sum of its proper divisors (143396145445).

551401064123 is a wasteful number, since it uses less digits than its factorization.

551401064123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277203 (or 3277160 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 551401064123 its reverse (321460104155), we get a palindrome (872861168278).

The spelling of 551401064123 in words is "five hundred fifty-one billion, four hundred one million, sixty-four thousand, one hundred twenty-three".