71661050 has 24 divisors (see below), whose sum is σ = 133908096. Its totient is φ = 28531440.

The previous prime is 71661049. The next prime is 71661089. The reversal of 71661050 is 5016617.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7937 + ... + 14363.

It is an arithmetic number, because the mean of its divisors is an integer number (5579504).

Almost surely, 2^71661050 is an apocalyptic number.

71661050 is a deficient number, since it is larger than the sum of its proper divisors (62247046).

71661050 is a wasteful number, since it uses less digits than its factorization.

71661050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6662 (or 6657 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 71661050 is about 8465.2849922492. The cubic root of 71661050 is about 415.3629186110.

Adding to 71661050 its reverse (5016617), we get a palindrome (76677667).

The spelling of 71661050 in words is "seventy-one million, six hundred sixty-one thousand, fifty".