4061665601 has 16 divisors (see below), whose sum is σ = 4799397888. Its totient is φ = 3363670800.

The previous prime is 4061665529. The next prime is 4061665607. The reversal of 4061665601 is 1065661604.

It is not a de Polignac number, because 4061665601 - 2¹⁰ = 4061664577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4061665607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122096 + ... + 151758.

It is an arithmetic number, because the mean of its divisors is an integer number (299962368).

Almost surely, 2^4061665601 is an apocalyptic number.

It is an amenable number.

4061665601 is a deficient number, since it is larger than the sum of its proper divisors (737732287).

4061665601 is a wasteful number, since it uses less digits than its factorization.

4061665601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30332.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 4061665601 is about 63731.1980194943. The cubic root of 4061665601 is about 1595.5168250770.

The spelling of 4061665601 in words is "four billion, sixty-one million, six hundred sixty-five thousand, six hundred one".