12355206515530 has 8 divisors (see below), whose sum is σ = 22239371727972. Its totient is φ = 4942082606208.

The previous prime is 12355206515473. The next prime is 12355206515537. The reversal of 12355206515530 is 3551560255321.

12355206515530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11972907915721 + 382298599809 = 3460189^2 + 618303^2 .

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

It is a super-2 number, since 2×12355206515530² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12355206515537) 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, 617760325767 + ... + 617760325786.

Almost surely, 2^{12355206515530} is an apocalyptic number.

12355206515530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12355206515530 is a deficient number, since it is larger than the sum of its proper divisors (9884165212442).

12355206515530 is a wasteful number, since it uses less digits than its factorization.

12355206515530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235520651560.

The product of its (nonzero) digits is 675000, while the sum is 43.

The spelling of 12355206515530 in words is "twelve trillion, three hundred fifty-five billion, two hundred six million, five hundred fifteen thousand, five hundred thirty".