616520189 has 8 divisors (see below), whose sum is σ = 649632000. Its totient is φ = 583474752.

The previous prime is 616520171. The next prime is 616520231. The reversal of 616520189 is 981025616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616520189 - 2²⁸ = 348084733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616520119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3092 + ... + 35250.

It is an arithmetic number, because the mean of its divisors is an integer number (81204000).

Almost surely, 2^616520189 is an apocalyptic number.

It is an amenable number.

616520189 is a deficient number, since it is larger than the sum of its proper divisors (33111811).

616520189 is a wasteful number, since it uses less digits than its factorization.

616520189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33187.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 616520189 is about 24829.8245865733. The cubic root of 616520189 is about 851.1036133111.

The spelling of 616520189 in words is "six hundred sixteen million, five hundred twenty thousand, one hundred eighty-nine".