71236600066 has 8 divisors (see below), whose sum is σ = 107141375484. Its totient is φ = 35522808240.

The previous prime is 71236600049. The next prime is 71236600081. The reversal of 71236600066 is 66000663217.

It can be written as a sum of positive squares in 2 ways, for example, as 63514584441 + 7722015625 = 252021^2 + 87875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 71236599998 and 71236600034.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47744965 + ... + 47746456.

Almost surely, 2^71236600066 is an apocalyptic number.

71236600066 is a deficient number, since it is larger than the sum of its proper divisors (35904775418).

71236600066 is a wasteful number, since it uses less digits than its factorization.

71236600066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95491796.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 71236600066 in words is "seventy-one billion, two hundred thirty-six million, six hundred thousand, sixty-six".