71669212088 has 8 divisors (see below), whose sum is σ = 134379772680. Its totient is φ = 35834606040.

The previous prime is 71669212073. The next prime is 71669212093. The reversal of 71669212088 is 88021296617.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×71669212088² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 4479325748 + ... + 4479325763.

It is an arithmetic number, because the mean of its divisors is an integer number (16797471585).

Almost surely, 2^71669212088 is an apocalyptic number.

It is an amenable number.

71669212088 is a deficient number, since it is larger than the sum of its proper divisors (62710560592).

71669212088 is a wasteful number, since it uses less digits than its factorization.

71669212088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8958651517 (or 8958651513 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 71669212088 in words is "seventy-one billion, six hundred sixty-nine million, two hundred twelve thousand, eighty-eight".