143165778668 has 12 divisors (see below), whose sum is σ = 273316486632. Its totient is φ = 65075353920.

The previous prime is 143165778667. The next prime is 143165778673. The reversal of 143165778668 is 866877561341.

It is a happy number.

It is a super-2 number, since 2×143165778668² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143165778668.

It is not an unprimeable number, because it can be changed into a prime (143165778661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1626883805 + ... + 1626883892.

It is an arithmetic number, because the mean of its divisors is an integer number (22776373886).

Almost surely, 2^143165778668 is an apocalyptic number.

It is an amenable number.

143165778668 is a deficient number, since it is larger than the sum of its proper divisors (130150707964).

143165778668 is a wasteful number, since it uses less digits than its factorization.

143165778668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253767712 (or 3253767710 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 62.

The spelling of 143165778668 in words is "one hundred forty-three billion, one hundred sixty-five million, seven hundred seventy-eight thousand, six hundred sixty-eight".