201601616116 has 6 divisors (see below), whose sum is σ = 352802828210. Its totient is φ = 100800808056.

The previous prime is 201601616113. The next prime is 201601616119. The reversal of 201601616116 is 611616106102.

It is an interprime number because it is at equal distance from previous prime (201601616113) and next prime (201601616119).

It can be written as a sum of positive squares in only one way, i.e., 194145984400 + 7455631716 = 440620^2 + 86346^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201601616113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25200202011 + ... + 25200202018.

Almost surely, 2^201601616116 is an apocalyptic number.

It is an amenable number.

201601616116 is a deficient number, since it is larger than the sum of its proper divisors (151201212094).

201601616116 is a wasteful number, since it uses less digits than its factorization.

201601616116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50400404033 (or 50400404031 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 201601616116 in words is "two hundred one billion, six hundred one million, six hundred sixteen thousand, one hundred sixteen".