4066137461 has 4 divisors (see below), whose sum is σ = 4152651072. Its totient is φ = 3979623852.

The previous prime is 4066137419. The next prime is 4066137521. The reversal of 4066137461 is 1647316604.

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 4066137461 - 2²⁶ = 3999028597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066130461) 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, 43256735 + ... + 43256828.

It is an arithmetic number, because the mean of its divisors is an integer number (1038162768).

Almost surely, 2^4066137461 is an apocalyptic number.

It is an amenable number.

4066137461 is a deficient number, since it is larger than the sum of its proper divisors (86513611).

4066137461 is an equidigital number, since it uses as much as digits as its factorization.

4066137461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86513610.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 4066137461 is about 63766.2721271990. The cubic root of 4066137461 is about 1596.1021605585.

The spelling of 4066137461 in words is "four billion, sixty-six million, one hundred thirty-seven thousand, four hundred sixty-one".