616412200450545 has 24 divisors (see below), whose sum is σ = 1068623748692136. Its totient is φ = 328699039857408.

The previous prime is 616412200450513. The next prime is 616412200450547. The reversal of 616412200450545 is 545054002214616.

616412200450545 is a `hidden beast` number, since 6 + 1 + 6 + 41 + 2 + 20 + 0 + 45 + 0 + 545 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 43993942980849 + 572418257469696 = 6632793^2 + 23925264^2 .

It is not a de Polignac number, because 616412200450545 - 2⁵ = 616412200450513 is a prime.

It is a super-3 number, since 3×616412200450545³ (a number of 45 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 616412200450545.

It is not an unprimeable number, because it can be changed into a prime (616412200450547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1127509434 + ... + 1128056003.

It is an arithmetic number, because the mean of its divisors is an integer number (44525989528839).

Almost surely, 2^{616412200450545} is an apocalyptic number.

It is an amenable number.

616412200450545 is a deficient number, since it is larger than the sum of its proper divisors (452211548241591).

616412200450545 is a wasteful number, since it uses less digits than its factorization.

616412200450545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255571521 (or 2255571518 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 616412200450545 in words is "six hundred sixteen trillion, four hundred twelve billion, two hundred million, four hundred fifty thousand, five hundred forty-five".