4150205661 has 16 divisors (see below), whose sum is σ = 6326517888. Its totient is φ = 2370648000.

The previous prime is 4150205623. The next prime is 4150205687. The reversal of 4150205661 is 1665020514.

It is not a de Polignac number, because 4150205661 - 2⁷ = 4150205533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4150205561) 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, 21511 + ... + 93611.

It is an arithmetic number, because the mean of its divisors is an integer number (395407368).

Almost surely, 2^4150205661 is an apocalyptic number.

It is an amenable number.

4150205661 is a deficient number, since it is larger than the sum of its proper divisors (2176312227).

4150205661 is a wasteful number, since it uses less digits than its factorization.

4150205661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74852.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 4150205661 is about 64422.0898527826. The cubic root of 4150205661 is about 1607.0271208265.

The spelling of 4150205661 in words is "four billion, one hundred fifty million, two hundred five thousand, six hundred sixty-one".