20041542145 has 16 divisors (see below), whose sum is σ = 24469151040. Its totient is φ = 15753960000.

The previous prime is 20041542139. The next prime is 20041542151. The reversal of 20041542145 is 54124514002.

It is an interprime number because it is at equal distance from previous prime (20041542139) and next prime (20041542151).

It is not a de Polignac number, because 20041542145 - 2¹⁷ = 20041411073 is a prime.

It is a super-2 number, since 2×20041542145² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648955 + ... + 679135.

It is an arithmetic number, because the mean of its divisors is an integer number (1529321940).

Almost surely, 2^20041542145 is an apocalyptic number.

It is an amenable number.

20041542145 is a deficient number, since it is larger than the sum of its proper divisors (4427608895).

20041542145 is a wasteful number, since it uses less digits than its factorization.

20041542145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32496.

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 20041542145 in words is "twenty billion, forty-one million, five hundred forty-two thousand, one hundred forty-five".