20145372507754 has 32 divisors (see below), whose sum is σ = 34255842223680. Its totient is φ = 8808360774912.

The previous prime is 20145372507749. The next prime is 20145372507787. The reversal of 20145372507754 is 45770527354102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33906589 + ... + 34495615.

It is an arithmetic number, because the mean of its divisors is an integer number (1070495069490).

Almost surely, 2^{20145372507754} is an apocalyptic number.

20145372507754 is a deficient number, since it is larger than the sum of its proper divisors (14110469715926).

20145372507754 is a wasteful number, since it uses less digits than its factorization.

20145372507754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658294.

The product of its (nonzero) digits is 8232000, while the sum is 52.

The spelling of 20145372507754 in words is "twenty trillion, one hundred forty-five billion, three hundred seventy-two million, five hundred seven thousand, seven hundred fifty-four".