2330155561 has 4 divisors (see below), whose sum is σ = 2330355412. Its totient is φ = 2329955712.

The previous prime is 2330155543. The next prime is 2330155567. The reversal of 2330155561 is 1655510332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 855211536 + 1474944025 = 29244^2 + 38405^2 .

It is a cyclic number.

It is not a de Polignac number, because 2330155561 - 2⁷ = 2330155433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2330155567) 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, 81276 + ... + 106141.

It is an arithmetic number, because the mean of its divisors is an integer number (582588853).

Almost surely, 2^2330155561 is an apocalyptic number.

It is an amenable number.

2330155561 is a deficient number, since it is larger than the sum of its proper divisors (199851).

2330155561 is a wasteful number, since it uses less digits than its factorization.

2330155561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199850.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 2330155561 is about 48271.6848784046. The cubic root of 2330155561 is about 1325.7500082291.

Adding to 2330155561 its reverse (1655510332), we get a palindrome (3985665893).

The spelling of 2330155561 in words is "two billion, three hundred thirty million, one hundred fifty-five thousand, five hundred sixty-one".