65433677421 has 32 divisors (see below), whose sum is σ = 105025024000. Its totient is φ = 35399540160.

The previous prime is 65433677359. The next prime is 65433677587. The reversal of 65433677421 is 12477633456.

It is not a de Polignac number, because 65433677421 - 2⁹ = 65433676909 is a prime.

It is a super-2 number, since 2×65433677421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65433677821) 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, 565116 + ... + 670986.

It is an arithmetic number, because the mean of its divisors is an integer number (3282032000).

Almost surely, 2^65433677421 is an apocalyptic number.

It is an amenable number.

65433677421 is a deficient number, since it is larger than the sum of its proper divisors (39591346579).

65433677421 is a wasteful number, since it uses less digits than its factorization.

65433677421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107449.

The product of its digits is 2540160, while the sum is 48.

The spelling of 65433677421 in words is "sixty-five billion, four hundred thirty-three million, six hundred seventy-seven thousand, four hundred twenty-one".