65634380901 has 12 divisors (see below), whose sum is σ = 95334857280. Its totient is φ = 43511804520.

The previous prime is 65634380891. The next prime is 65634380921. The reversal of 65634380901 is 10908343656.

65634380901 is a `hidden beast` number, since 6 + 5 + 634 + 3 + 8 + 0 + 9 + 0 + 1 = 666.

It is not a de Polignac number, because 65634380901 - 2⁵ = 65634380869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65634380921) 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, 20369085 + ... + 20372306.

It is an arithmetic number, because the mean of its divisors is an integer number (7944571440).

Almost surely, 2^65634380901 is an apocalyptic number.

It is an amenable number.

65634380901 is a deficient number, since it is larger than the sum of its proper divisors (29700476379).

65634380901 is a wasteful number, since it uses less digits than its factorization.

65634380901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40741576 (or 40741573 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 65634380901 in words is "sixty-five billion, six hundred thirty-four million, three hundred eighty thousand, nine hundred one".