616571672105 has 16 divisors (see below), whose sum is σ = 762560663040. Its totient is φ = 478333467072.

The previous prime is 616571672077. The next prime is 616571672131. The reversal of 616571672105 is 501276175616.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616571672105 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 616571672105.

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, 12009749 + ... + 12060978.

It is an arithmetic number, because the mean of its divisors is an integer number (47660041440).

Almost surely, 2^616571672105 is an apocalyptic number.

It is an amenable number.

616571672105 is a deficient number, since it is larger than the sum of its proper divisors (145988990935).

616571672105 is a wasteful number, since it uses less digits than its factorization.

616571672105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24070888.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 616571672105 in words is "six hundred sixteen billion, five hundred seventy-one million, six hundred seventy-two thousand, one hundred five".