667521730025241 has 32 divisors (see below), whose sum is σ = 1110426032136960. Its totient is φ = 347276094971904.

The previous prime is 667521730025209. The next prime is 667521730025279. The reversal of 667521730025241 is 142520037125766.

667521730025241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 667521730025241 - 2⁵ = 667521730025209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667521730025291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16747476936 + ... + 16747516793.

It is an arithmetic number, because the mean of its divisors is an integer number (34700813504280).

Almost surely, 2^{667521730025241} is an apocalyptic number.

It is an amenable number.

667521730025241 is a deficient number, since it is larger than the sum of its proper divisors (442904302111719).

667521730025241 is a wasteful number, since it uses less digits than its factorization.

667521730025241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33494993825.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 667521730025241 in words is "six hundred sixty-seven trillion, five hundred twenty-one billion, seven hundred thirty million, twenty-five thousand, two hundred forty-one".