115215143666 has 16 divisors (see below), whose sum is σ = 197522931456. Its totient is φ = 49375104576.

The previous prime is 115215143657. The next prime is 115215143671. The reversal of 115215143666 is 666341512511.

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, 30215 + ... + 480981.

It is an arithmetic number, because the mean of its divisors is an integer number (12345183216).

Almost surely, 2^115215143666 is an apocalyptic number.

115215143666 is a deficient number, since it is larger than the sum of its proper divisors (82307787790).

115215143666 is a wasteful number, since it uses less digits than its factorization.

115215143666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469033.

The product of its digits is 129600, while the sum is 41.

The spelling of 115215143666 in words is "one hundred fifteen billion, two hundred fifteen million, one hundred forty-three thousand, six hundred sixty-six".