2146395561 has 8 divisors (see below), whose sum is σ = 2862138720. Its totient is φ = 1430791392.

The previous prime is 2146395547. The next prime is 2146395607. The reversal of 2146395561 is 1655936412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2146395561 - 2¹⁴ = 2146379177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2146395761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9246 + ... + 66168.

It is an arithmetic number, because the mean of its divisors is an integer number (357767340).

Almost surely, 2^2146395561 is an apocalyptic number.

It is an amenable number.

2146395561 is a deficient number, since it is larger than the sum of its proper divisors (715743159).

2146395561 is a wasteful number, since it uses less digits than its factorization.

2146395561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69495.

The product of its digits is 194400, while the sum is 42.

The square root of 2146395561 is about 46329.2085082402. The cubic root of 2146395561 is about 1289.9412190030.

The spelling of 2146395561 in words is "two billion, one hundred forty-six million, three hundred ninety-five thousand, five hundred sixty-one".