12105953958 has 16 divisors (see below), whose sum is σ = 27670752000. Its totient is φ = 3458843976.

The previous prime is 12105953941. The next prime is 12105953969. The reversal of 12105953958 is 85935950121.

It is a congruent number.

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, 144118458 + ... + 144118541.

It is an arithmetic number, because the mean of its divisors is an integer number (1729422000).

Almost surely, 2^12105953958 is an apocalyptic number.

12105953958 is an abundant number, since it is smaller than the sum of its proper divisors (15564798042).

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

12105953958 is a wasteful number, since it uses less digits than its factorization.

12105953958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288237011.

The product of its (nonzero) digits is 486000, while the sum is 48.

The spelling of 12105953958 in words is "twelve billion, one hundred five million, nine hundred fifty-three thousand, nine hundred fifty-eight".