48665425661 has 2 divisors, whose sum is σ = 48665425662. Its totient is φ = 48665425660.

The previous prime is 48665425639. The next prime is 48665425727. The reversal of 48665425661 is 16652456684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44001355225 + 4664070436 = 209765^2 + 68294^2 .

It is a cyclic number.

It is not a de Polignac number, because 48665425661 - 2¹⁰ = 48665424637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48665425631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24332712830 + 24332712831.

It is an arithmetic number, because the mean of its divisors is an integer number (24332712831).

Almost surely, 2^48665425661 is an apocalyptic number.

It is an amenable number.

48665425661 is a deficient number, since it is larger than the sum of its proper divisors (1).

48665425661 is an equidigital number, since it uses as much as digits as its factorization.

48665425661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8294400, while the sum is 53.

The spelling of 48665425661 in words is "forty-eight billion, six hundred sixty-five million, four hundred twenty-five thousand, six hundred sixty-one".