71530669465 has 16 divisors (see below), whose sum is σ = 86446008000. Its totient is φ = 56819568960.

The previous prime is 71530669447. The next prime is 71530669513. The reversal of 71530669465 is 56496603517.

It is not a de Polignac number, because 71530669465 - 2⁵ = 71530669433 is a prime.

It is a super-2 number, since 2×71530669465² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 418750 + ... + 564280.

It is an arithmetic number, because the mean of its divisors is an integer number (5402875500).

Almost surely, 2^71530669465 is an apocalyptic number.

It is an amenable number.

71530669465 is a deficient number, since it is larger than the sum of its proper divisors (14915338535).

71530669465 is a wasteful number, since it uses less digits than its factorization.

71530669465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146232.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 71530669465 in words is "seventy-one billion, five hundred thirty million, six hundred sixty-nine thousand, four hundred sixty-five".