143643221255605 has 16 divisors (see below), whose sum is σ = 172437976281024. Its totient is φ = 114870511396480.

The previous prime is 143643221255581. The next prime is 143643221255629. The reversal of 143643221255605 is 506552122346341.

It is an interprime number because it is at equal distance from previous prime (143643221255581) and next prime (143643221255629).

It is not a de Polignac number, because 143643221255605 - 2³⁷ = 143505782302133 is a prime.

It is a super-3 number, since 3×143643221255605³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

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, 140398350 + ... + 141417760.

It is an arithmetic number, because the mean of its divisors is an integer number (10777373517564).

Almost surely, 2^{143643221255605} is an apocalyptic number.

It is an amenable number.

143643221255605 is a deficient number, since it is larger than the sum of its proper divisors (28794755025419).

143643221255605 is a wasteful number, since it uses less digits than its factorization.

143643221255605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030196.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 143643221255605 in words is "one hundred forty-three trillion, six hundred forty-three billion, two hundred twenty-one million, two hundred fifty-five thousand, six hundred five".