45165189620 has 24 divisors (see below), whose sum is σ = 100426128264. Its totient is φ = 17003365376.

The previous prime is 45165189547. The next prime is 45165189647. The reversal of 45165189620 is 2698156154.

It can be written as a sum of positive squares in 4 ways, for example, as 5442307984 + 39722881636 = 73772^2 + 199306^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66419057 + ... + 66419736.

It is an arithmetic number, because the mean of its divisors is an integer number (4184422011).

Almost surely, 2^45165189620 is an apocalyptic number.

It is an amenable number.

45165189620 is an abundant number, since it is smaller than the sum of its proper divisors (55260938644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45165189620 is a wasteful number, since it uses less digits than its factorization.

45165189620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132838819 (or 132838817 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 45165189620 in words is "forty-five billion, one hundred sixty-five million, one hundred eighty-nine thousand, six hundred twenty".