143067701661 has 4 divisors (see below), whose sum is σ = 190756935552. Its totient is φ = 95378467772.

The previous prime is 143067701611. The next prime is 143067701683. The reversal of 143067701661 is 166107760341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143067701661 - 2¹³ = 143067693469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143067701611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23844616941 + ... + 23844616946.

It is an arithmetic number, because the mean of its divisors is an integer number (47689233888).

Almost surely, 2^143067701661 is an apocalyptic number.

It is an amenable number.

143067701661 is a deficient number, since it is larger than the sum of its proper divisors (47689233891).

143067701661 is an equidigital number, since it uses as much as digits as its factorization.

143067701661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47689233890.

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 143067701661 in words is "one hundred forty-three billion, sixty-seven million, seven hundred one thousand, six hundred sixty-one".