12309055658 has 16 divisors (see below), whose sum is σ = 18800955360. Its totient is φ = 6042342096.

The previous prime is 12309055631. The next prime is 12309055691. The reversal of 12309055658 is 85655090321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23741 + ... + 158687.

It is an arithmetic number, because the mean of its divisors is an integer number (1175059710).

Almost surely, 2^12309055658 is an apocalyptic number.

12309055658 is a deficient number, since it is larger than the sum of its proper divisors (6491899702).

12309055658 is a wasteful number, since it uses less digits than its factorization.

12309055658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135781.

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 12309055658 in words is "twelve billion, three hundred nine million, fifty-five thousand, six hundred fifty-eight".