2367720661 has 4 divisors (see below), whose sum is σ = 2367924832. Its totient is φ = 2367516492.

The previous prime is 2367720643. The next prime is 2367720703. The reversal of 2367720661 is 1660277632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2367720661 - 2⁵ = 2367720629 is a prime.

It is a super-2 number, since 2×2367720661² = 11212202257052553842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2367720601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83571 + ... + 108256.

It is an arithmetic number, because the mean of its divisors is an integer number (591981208).

Almost surely, 2^2367720661 is an apocalyptic number.

It is an amenable number.

2367720661 is a deficient number, since it is larger than the sum of its proper divisors (204171).

2367720661 is a wasteful number, since it uses less digits than its factorization.

2367720661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204170.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 2367720661 is about 48659.2299671912. The cubic root of 2367720661 is about 1332.8363275884.

The spelling of 2367720661 in words is "two billion, three hundred sixty-seven million, seven hundred twenty thousand, six hundred sixty-one".