143053538661 has 12 divisors (see below), whose sum is σ = 225417697440. Its totient is φ = 86699114280.

The previous prime is 143053538623. The next prime is 143053538671. The reversal of 143053538661 is 166835350341.

143053538661 is a `hidden beast` number, since 1 + 4 + 3 + 0 + 53 + 538 + 6 + 61 = 666.

143053538661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143053538661 - 2¹⁰ = 143053537637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143053538611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 722492521 + ... + 722492718.

It is an arithmetic number, because the mean of its divisors is an integer number (18784808120).

Almost surely, 2^143053538661 is an apocalyptic number.

143053538661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143053538661 is a deficient number, since it is larger than the sum of its proper divisors (82364158779).

143053538661 is a wasteful number, since it uses less digits than its factorization.

143053538661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444985256 (or 1444985253 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 143053538661 in words is "one hundred forty-three billion, fifty-three million, five hundred thirty-eight thousand, six hundred sixty-one".