71061616 has 10 divisors (see below), whose sum is σ = 137681912. Its totient is φ = 35530800.

The previous prime is 71061593. The next prime is 71061619. The reversal of 71061616 is 61616017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71061619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2220660 + ... + 2220691.

Almost surely, 2^71061616 is an apocalyptic number.

It is an amenable number.

71061616 is a deficient number, since it is larger than the sum of its proper divisors (66620296).

71061616 is a wasteful number, since it uses less digits than its factorization.

71061616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441359 (or 4441353 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 71061616 is about 8429.8052172040. The cubic root of 71061616 is about 414.2015246398.

It can be divided in two parts, 710 and 61616, that added together give a palindrome (62326).

The spelling of 71061616 in words is "seventy-one million, sixty-one thousand, six hundred sixteen".