71661082 has 16 divisors (see below), whose sum is σ = 110621952. Its totient is φ = 34791120.

The previous prime is 71661049. The next prime is 71661089. The reversal of 71661082 is 28016617.

It is a super-3 number, since 3×71661082³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (71661089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66883 + ... + 67945.

It is an arithmetic number, because the mean of its divisors is an integer number (6913872).

Almost surely, 2^71661082 is an apocalyptic number.

71661082 is a deficient number, since it is larger than the sum of its proper divisors (38960870).

71661082 is a wasteful number, since it uses less digits than its factorization.

71661082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 71661082 is about 8465.2868823212. The cubic root of 71661082 is about 415.3629804373.

Adding to 71661082 its reverse (28016617), we get a palindrome (99677699).

The spelling of 71661082 in words is "seventy-one million, six hundred sixty-one thousand, eighty-two".