143666126466121 has 32 divisors (see below), whose sum is σ = 167897449893888. Its totient is φ = 120401635273920.

The previous prime is 143666126466089. The next prime is 143666126466197. The reversal of 143666126466121 is 121664621666341.

It is not a de Polignac number, because 143666126466121 - 2⁵ = 143666126466089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143666126469121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14746276 + ... + 22467418.

It is an arithmetic number, because the mean of its divisors is an integer number (5246795309184).

Almost surely, 2^{143666126466121} is an apocalyptic number.

It is an amenable number.

143666126466121 is a deficient number, since it is larger than the sum of its proper divisors (24231323427767).

143666126466121 is a wasteful number, since it uses less digits than its factorization.

143666126466121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7721581.

The product of its digits is 8957952, while the sum is 55.

The spelling of 143666126466121 in words is "one hundred forty-three trillion, six hundred sixty-six billion, one hundred twenty-six million, four hundred sixty-six thousand, one hundred twenty-one".