2325401661 has 64 divisors (see below), whose sum is σ = 3655120896. Its totient is φ = 1299456000.

The previous prime is 2325401653. The next prime is 2325401669. The reversal of 2325401661 is 1661045232.

It is an interprime number because it is at equal distance from previous prime (2325401653) and next prime (2325401669).

It is not a de Polignac number, because 2325401661 - 2³ = 2325401653 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 (2325401669) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8216826 + ... + 8217108.

It is an arithmetic number, because the mean of its divisors is an integer number (57111264).

Almost surely, 2^2325401661 is an apocalyptic number.

It is an amenable number.

2325401661 is a deficient number, since it is larger than the sum of its proper divisors (1329719235).

2325401661 is a wasteful number, since it uses less digits than its factorization.

2325401661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2325401661 is about 48222.4186556419. The cubic root of 2325401661 is about 1324.8478118310.

Adding to 2325401661 its reverse (1661045232), we get a palindrome (3986446893).

The spelling of 2325401661 in words is "two billion, three hundred twenty-five million, four hundred one thousand, six hundred sixty-one".