4206665501 has 2 divisors, whose sum is σ = 4206665502. Its totient is φ = 4206665500.

The previous prime is 4206665479. The next prime is 4206665513. The reversal of 4206665501 is 1055666024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2647205401 + 1559460100 = 51451^2 + 39490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4206665501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4206665401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2103332750 + 2103332751.

It is an arithmetic number, because the mean of its divisors is an integer number (2103332751).

Almost surely, 2^4206665501 is an apocalyptic number.

It is an amenable number.

4206665501 is a deficient number, since it is larger than the sum of its proper divisors (1).

4206665501 is an equidigital number, since it uses as much as digits as its factorization.

4206665501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 4206665501 is about 64858.8120535676. The cubic root of 4206665501 is about 1614.2817115918.

The spelling of 4206665501 in words is "four billion, two hundred six million, six hundred sixty-five thousand, five hundred one".