75235005661 has 8 divisors (see below), whose sum is σ = 75905351424. Its totient is φ = 74567633280.

The previous prime is 75235005649. The next prime is 75235005683. The reversal of 75235005661 is 16650053257.

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

It is a cyclic number.

It is not a de Polignac number, because 75235005661 - 2²⁷ = 75100787933 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 (75235005691) 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 7 ways as a sum of consecutive naturals, for example, 692500 + ... + 793741.

It is an arithmetic number, because the mean of its divisors is an integer number (9488168928).

Almost surely, 2^75235005661 is an apocalyptic number.

It is an amenable number.

75235005661 is a deficient number, since it is larger than the sum of its proper divisors (670345763).

75235005661 is a wasteful number, since it uses less digits than its factorization.

75235005661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486691.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 75235005661 in words is "seventy-five billion, two hundred thirty-five million, five thousand, six hundred sixty-one".