661052224650235 has 48 divisors (see below), whose sum is σ = 890984620044288. Its totient is φ = 470272268854080.

The previous prime is 661052224650221. The next prime is 661052224650241. The reversal of 661052224650235 is 532056422250166.

It is not a de Polignac number, because 661052224650235 - 2¹⁹ = 661052224125947 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44180302 + ... + 57218908.

It is an arithmetic number, because the mean of its divisors is an integer number (18562179584256).

Almost surely, 2^{661052224650235} is an apocalyptic number.

661052224650235 is a deficient number, since it is larger than the sum of its proper divisors (229932395394053).

661052224650235 is a wasteful number, since it uses less digits than its factorization.

661052224650235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13040464 (or 13040453 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 661052224650235 in words is "six hundred sixty-one trillion, fifty-two billion, two hundred twenty-four million, six hundred fifty thousand, two hundred thirty-five".