3660122591 has 4 divisors (see below), whose sum is σ = 3660290832. Its totient is φ = 3659954352.

The previous prime is 3660122579. The next prime is 3660122651. The reversal of 3660122591 is 1952210663.

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

It is a cyclic number.

It is not a de Polignac number, because 3660122591 - 2⁶ = 3660122527 is a prime.

It is a super-2 number, since 2×3660122591² = 26792994762297106562, 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 (3660922591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45611 + ... + 96956.

It is an arithmetic number, because the mean of its divisors is an integer number (915072708).

Almost surely, 2^3660122591 is an apocalyptic number.

3660122591 is a deficient number, since it is larger than the sum of its proper divisors (168241).

3660122591 is a wasteful number, since it uses less digits than its factorization.

3660122591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168240.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 3660122591 is about 60498.9470238946. The cubic root of 3660122591 is about 1541.1037501088.

The spelling of 3660122591 in words is "three billion, six hundred sixty million, one hundred twenty-two thousand, five hundred ninety-one".