12355566690 has 32 divisors (see below), whose sum is σ = 29656362816. Its totient is φ = 3294484160.

The previous prime is 12355566631. The next prime is 12355566701. The reversal of 12355566690 is 9666555321.

12355566690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12355566690² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 469009 + ... + 494651.

It is an arithmetic number, because the mean of its divisors is an integer number (926761338).

Almost surely, 2^12355566690 is an apocalyptic number.

12355566690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12355566690 is an abundant number, since it is smaller than the sum of its proper divisors (17300796126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12355566690 is a wasteful number, since it uses less digits than its factorization.

12355566690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41714.

The product of its (nonzero) digits is 1458000, while the sum is 48.

The spelling of 12355566690 in words is "twelve billion, three hundred fifty-five million, five hundred sixty-six thousand, six hundred ninety".