65354221625 has 144 divisors (see below), whose sum is σ = 109278554112. Its totient is φ = 38581704000.

The previous prime is 65354221577. The next prime is 65354221627. The reversal of 65354221625 is 52612245356.

It is not a de Polignac number, because 65354221625 - 2⁶ = 65354221561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65354221627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 24321032 + ... + 24323718.

It is an arithmetic number, because the mean of its divisors is an integer number (758878848).

Almost surely, 2^65354221625 is an apocalyptic number.

It is an amenable number.

65354221625 is a deficient number, since it is larger than the sum of its proper divisors (43924332487).

65354221625 is a wasteful number, since it uses less digits than its factorization.

65354221625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765 (or 2729 counting only the distinct ones).

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

The spelling of 65354221625 in words is "sixty-five billion, three hundred fifty-four million, two hundred twenty-one thousand, six hundred twenty-five".