616166445 has 32 divisors (see below), whose sum is σ = 1045204992. Its totient is φ = 308892672.

The previous prime is 616166437. The next prime is 616166461. The reversal of 616166445 is 544661616.

It is a happy number.

It is not a de Polignac number, because 616166445 - 2³ = 616166437 is a prime.

It is a super-2 number, since 2×616166445² = 759322175887876050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369684 + ... + 371346.

It is an arithmetic number, because the mean of its divisors is an integer number (32662656).

Almost surely, 2^616166445 is an apocalyptic number.

It is an amenable number.

616166445 is a deficient number, since it is larger than the sum of its proper divisors (429038547).

616166445 is a wasteful number, since it uses less digits than its factorization.

616166445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141.

The product of its digits is 103680, while the sum is 39.

The square root of 616166445 is about 24822.7001955871. The cubic root of 616166445 is about 850.9408014503.

The spelling of 616166445 in words is "six hundred sixteen million, one hundred sixty-six thousand, four hundred forty-five".