143666254421115 has 16 divisors (see below), whose sum is σ = 231543861143328. Its totient is φ = 76062717668096.

The previous prime is 143666254421099. The next prime is 143666254421161. The reversal of 143666254421115 is 511124452666341.

143666254421115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 143666254421115 - 2⁴ = 143666254421099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34955290992 + ... + 34955295101.

It is an arithmetic number, because the mean of its divisors is an integer number (14471491321458).

Almost surely, 2^{143666254421115} is an apocalyptic number.

143666254421115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

143666254421115 is a deficient number, since it is larger than the sum of its proper divisors (87877606722213).

143666254421115 is a wasteful number, since it uses less digits than its factorization.

143666254421115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69910586238.

The product of its digits is 4147200, while the sum is 51.

The spelling of 143666254421115 in words is "one hundred forty-three trillion, six hundred sixty-six billion, two hundred fifty-four million, four hundred twenty-one thousand, one hundred fifteen".