71669355273 has 6 divisors (see below), whose sum is σ = 103522402074. Its totient is φ = 47779570176.

The previous prime is 71669355271. The next prime is 71669355281. The reversal of 71669355273 is 37255396617.

71669355273 is a `hidden beast` number, since 7 + 16 + 6 + 9 + 3 + 552 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 70651234809 + 1018120464 = 265803^2 + 31908^2 .

It is not a de Polignac number, because 71669355273 - 2¹ = 71669355271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71669355271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3981630840 + ... + 3981630857.

It is an arithmetic number, because the mean of its divisors is an integer number (17253733679).

Almost surely, 2^71669355273 is an apocalyptic number.

It is an amenable number.

71669355273 is a deficient number, since it is larger than the sum of its proper divisors (31853046801).

71669355273 is a wasteful number, since it uses less digits than its factorization.

71669355273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963261703 (or 7963261700 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 54.

The spelling of 71669355273 in words is "seventy-one billion, six hundred sixty-nine million, three hundred fifty-five thousand, two hundred seventy-three".