20585021328746 has 16 divisors (see below), whose sum is σ = 35289423653760. Its totient is φ = 8821948082640.

The previous prime is 20585021328737. The next prime is 20585021328761. The reversal of 20585021328746 is 64782312058502.

It is a happy number.

It is a Curzon 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, 16364825 + ... + 17577756.

It is an arithmetic number, because the mean of its divisors is an integer number (2205588978360).

Almost surely, 2^{20585021328746} is an apocalyptic number.

20585021328746 is a deficient number, since it is larger than the sum of its proper divisors (14704402325014).

20585021328746 is a wasteful number, since it uses less digits than its factorization.

20585021328746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33985909.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 20585021328746 in words is "twenty trillion, five hundred eighty-five billion, twenty-one million, three hundred twenty-eight thousand, seven hundred forty-six".