1523255361655 has 8 divisors (see below), whose sum is σ = 1907380626912. Its totient is φ = 1165621494048.

The previous prime is 1523255361601. The next prime is 1523255361679. The reversal of 1523255361655 is 5561635523251.

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 1523255361655 - 2²¹ = 1523253264503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1523255361599 and 1523255361608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6622849284 + ... + 6622849513.

It is an arithmetic number, because the mean of its divisors is an integer number (238422578364).

Almost surely, 2^{1523255361655} is an apocalyptic number.

1523255361655 is a deficient number, since it is larger than the sum of its proper divisors (384125265257).

1523255361655 is a wasteful number, since it uses less digits than its factorization.

1523255361655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13245698825.

The product of its digits is 4050000, while the sum is 49.

The spelling of 1523255361655 in words is "one trillion, five hundred twenty-three billion, two hundred fifty-five million, three hundred sixty-one thousand, six hundred fifty-five".