20200134621546 has 24 divisors (see below), whose sum is σ = 47745772742304. Its totient is φ = 6121252915560.

The previous prime is 20200134621533. The next prime is 20200134621599. The reversal of 20200134621546 is 64512643100202.

20200134621546 is a `hidden beast` number, since 2 + 0 + 20 + 0 + 1 + 3 + 4 + 621 + 5 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20200134621546.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51010440766 + ... + 51010441161.

It is an arithmetic number, because the mean of its divisors is an integer number (1989407197596).

Almost surely, 2^{20200134621546} is an apocalyptic number.

20200134621546 is an abundant number, since it is smaller than the sum of its proper divisors (27545638120758).

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

20200134621546 is a wasteful number, since it uses less digits than its factorization.

20200134621546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102020881946 (or 102020881943 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 20200134621546 its reverse (64512643100202), we get a palindrome (84712777721748).

The spelling of 20200134621546 in words is "twenty trillion, two hundred billion, one hundred thirty-four million, six hundred twenty-one thousand, five hundred forty-six".