143165401606165 has 32 divisors (see below), whose sum is σ = 180750618157536. Its totient is φ = 108715585904640.

The previous prime is 143165401606163. The next prime is 143165401606177. The reversal of 143165401606165 is 561606104561341.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 72731798550436 + 70433603055729 = 8528294^2 + 8392473^2 .

It is not a de Polignac number, because 143165401606165 - 2¹ = 143165401606163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143165401606163) 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, 266367039 + ... + 266903971.

It is an arithmetic number, because the mean of its divisors is an integer number (5648456817423).

Almost surely, 2^{143165401606165} is an apocalyptic number.

It is an amenable number.

143165401606165 is a deficient number, since it is larger than the sum of its proper divisors (37585216551371).

143165401606165 is a wasteful number, since it uses less digits than its factorization.

143165401606165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572169.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 143165401606165 in words is "one hundred forty-three trillion, one hundred sixty-five billion, four hundred one million, six hundred six thousand, one hundred sixty-five".