3721664143 has 2 divisors, whose sum is σ = 3721664144. Its totient is φ = 3721664142.

The previous prime is 3721664137. The next prime is 3721664161. The reversal of 3721664143 is 3414661273.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3721664143 - 2²⁹ = 3184793231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3721664183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860832071 + 1860832072.

It is an arithmetic number, because the mean of its divisors is an integer number (1860832072).

Almost surely, 2^3721664143 is an apocalyptic number.

3721664143 is a deficient number, since it is larger than the sum of its proper divisors (1).

3721664143 is an equidigital number, since it uses as much as digits as its factorization.

3721664143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 3721664143 is about 61005.4435521946. The cubic root of 3721664143 is about 1549.6931953283.

The spelling of 3721664143 in words is "three billion, seven hundred twenty-one million, six hundred sixty-four thousand, one hundred forty-three".