71465416221 has 16 divisors (see below), whose sum is σ = 101139062400. Its totient is φ = 44731396608.

The previous prime is 71465416163. The next prime is 71465416229. The reversal of 71465416221 is 12261456417.

It is not a de Polignac number, because 71465416221 - 2⁹ = 71465415709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71465416221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71465416229) 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 15 ways as a sum of consecutive naturals, for example, 1692201 + ... + 1733918.

It is an arithmetic number, because the mean of its divisors is an integer number (6321191400).

Almost surely, 2^71465416221 is an apocalyptic number.

It is an amenable number.

71465416221 is a deficient number, since it is larger than the sum of its proper divisors (29673646179).

71465416221 is a wasteful number, since it uses less digits than its factorization.

71465416221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426548.

The product of its digits is 80640, while the sum is 39.

The spelling of 71465416221 in words is "seventy-one billion, four hundred sixty-five million, four hundred sixteen thousand, two hundred twenty-one".