1551552553423 has 8 divisors (see below), whose sum is σ = 1615683869280. Its totient is φ = 1488129871200.

The previous prime is 1551552553417. The next prime is 1551552553477. The reversal of 1551552553423 is 3243552551551.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1551552553423 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 (1551552553483) 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, 177153940 + ... + 177162697.

It is an arithmetic number, because the mean of its divisors is an integer number (201960483660).

Almost surely, 2^{1551552553423} is an apocalyptic number.

1551552553423 is a deficient number, since it is larger than the sum of its proper divisors (64131315857).

1551552553423 is a wasteful number, since it uses less digits than its factorization.

1551552553423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354316817.

The product of its digits is 2250000, while the sum is 46.

The spelling of 1551552553423 in words is "one trillion, five hundred fifty-one billion, five hundred fifty-two million, five hundred fifty-three thousand, four hundred twenty-three".