20026602145 has 16 divisors (see below), whose sum is σ = 26226364032. Its totient is φ = 14559400960.

The previous prime is 20026602143. The next prime is 20026602173. The reversal of 20026602145 is 54120662002.

It is not a de Polignac number, because 20026602145 - 2¹ = 20026602143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20026602143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85284 + ... + 217546.

It is an arithmetic number, because the mean of its divisors is an integer number (1639147752).

Almost surely, 2^20026602145 is an apocalyptic number.

It is an amenable number.

20026602145 is a deficient number, since it is larger than the sum of its proper divisors (6199761887).

20026602145 is a wasteful number, since it uses less digits than its factorization.

20026602145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135032.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 20026602145 in words is "twenty billion, twenty-six million, six hundred two thousand, one hundred forty-five".