616166465 has 8 divisors (see below), whose sum is σ = 739533480. Its totient is φ = 492844032.

The previous prime is 616166461. The next prime is 616166483. The reversal of 616166465 is 564661616.

It can be written as a sum of positive squares in 4 ways, for example, as 297079696 + 319086769 = 17236^2 + 17863^2 .

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 616166465 - 2² = 616166461 is a prime.

It is a super-3 number, since 3×616166465³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (616166461) 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, 44831 + ... + 56939.

It is an arithmetic number, because the mean of its divisors is an integer number (92441685).

Almost surely, 2^616166465 is an apocalyptic number.

It is an amenable number.

616166465 is a deficient number, since it is larger than the sum of its proper divisors (123367015).

616166465 is a wasteful number, since it uses less digits than its factorization.

616166465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22291.

The product of its digits is 155520, while the sum is 41.

The square root of 616166465 is about 24822.7005984442. The cubic root of 616166465 is about 850.9408106571.

The spelling of 616166465 in words is "six hundred sixteen million, one hundred sixty-six thousand, four hundred sixty-five".