143424442665 has 128 divisors (see below), whose sum is σ = 299176120320. Its totient is φ = 63826527744.

The previous prime is 143424442661. The next prime is 143424442709. The reversal of 143424442665 is 566244424341.

143424442665 is a `hidden beast` number, since 1 + 4 + 342 + 4 + 44 + 266 + 5 = 666.

It is not a de Polignac number, because 143424442665 - 2² = 143424442661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 143424442665.

It is not an unprimeable number, because it can be changed into a prime (143424442661) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12469197 + ... + 12480693.

It is an arithmetic number, because the mean of its divisors is an integer number (2337313440).

Almost surely, 2^143424442665 is an apocalyptic number.

143424442665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143424442665 is an abundant number, since it is smaller than the sum of its proper divisors (155751677655).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143424442665 is a wasteful number, since it uses less digits than its factorization.

143424442665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868 (or 11862 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 45.

The spelling of 143424442665 in words is "one hundred forty-three billion, four hundred twenty-four million, four hundred forty-two thousand, six hundred sixty-five".