2361163661 has 8 divisors (see below), whose sum is σ = 2404214424. Its totient is φ = 2318253120.

The previous prime is 2361163633. The next prime is 2361163667. The reversal of 2361163661 is 1663611632.

It can be written as a sum of positive squares in 4 ways, for example, as 69722500 + 2291441161 = 8350^2 + 47869^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2361163661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2361163667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770 + ... + 68723.

It is an arithmetic number, because the mean of its divisors is an integer number (300526803).

Almost surely, 2^2361163661 is an apocalyptic number.

It is an amenable number.

2361163661 is a deficient number, since it is larger than the sum of its proper divisors (43050763).

2361163661 is an equidigital number, since it uses as much as digits as its factorization.

2361163661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70111.

The product of its digits is 23328, while the sum is 35.

The square root of 2361163661 is about 48591.8065212645. The cubic root of 2361163661 is about 1331.6048355162.

The spelling of 2361163661 in words is "two billion, three hundred sixty-one million, one hundred sixty-three thousand, six hundred sixty-one".