71601116 has 48 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 32303040.

The previous prime is 71601109. The next prime is 71601121. The reversal of 71601116 is 61110617.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 71601091 and 71601100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125111 + ... + 125681.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 2^71601116 is an apocalyptic number.

It is an amenable number.

71601116 is a deficient number, since it is larger than the sum of its proper divisors (66777124).

71601116 is a wasteful number, since it uses less digits than its factorization.

71601116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 71601116 is about 8461.7442646301. The cubic root of 71601116 is about 415.2470895121.

It can be divided in two parts, 71601 and 116, that added together give a palindrome (71717).

The spelling of 71601116 in words is "seventy-one million, six hundred one thousand, one hundred sixteen".