661452250235 has 12 divisors (see below), whose sum is σ = 923333345568. Its totient is φ = 453567257136.

The previous prime is 661452250231. The next prime is 661452250241. The reversal of 661452250235 is 532052254166.

It is not a de Polignac number, because 661452250235 - 2² = 661452250231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 661452250192 and 661452250201.

It is not an unprimeable number, because it can be changed into a prime (661452250231) 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 11 ways as a sum of consecutive naturals, for example, 1349902307 + ... + 1349902796.

It is an arithmetic number, because the mean of its divisors is an integer number (76944445464).

Almost surely, 2^661452250235 is an apocalyptic number.

661452250235 is a deficient number, since it is larger than the sum of its proper divisors (261881095333).

661452250235 is a wasteful number, since it uses less digits than its factorization.

661452250235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699805122 (or 2699805115 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 661452250235 in words is "six hundred sixty-one billion, four hundred fifty-two million, two hundred fifty thousand, two hundred thirty-five".