42200616645 has 24 divisors (see below), whose sum is σ = 79797530592. Its totient is φ = 20460904800.

The previous prime is 42200616641. The next prime is 42200616673. The reversal of 42200616645 is 54661600224.

42200616645 is a `hidden beast` number, since 4 + 2 + 2 + 0 + 0 + 6 + 1 + 6 + 645 = 666.

It is not a de Polignac number, because 42200616645 - 2² = 42200616641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42200616641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42626391 + ... + 42627380.

It is an arithmetic number, because the mean of its divisors is an integer number (3324897108).

Almost surely, 2^42200616645 is an apocalyptic number.

42200616645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42200616645 is a deficient number, since it is larger than the sum of its proper divisors (37596913947).

42200616645 is a wasteful number, since it uses less digits than its factorization.

42200616645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85253793 (or 85253790 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 42200616645 in words is "forty-two billion, two hundred million, six hundred sixteen thousand, six hundred forty-five".