20473536546 has 48 divisors (see below), whose sum is σ = 45145900800. Its totient is φ = 6703679904.

The previous prime is 20473536527. The next prime is 20473536607. The reversal of 20473536546 is 64563537402.

20473536546 is a `hidden beast` number, since 2 + 0 + 4 + 73 + 5 + 36 + 546 = 666.

It is a super-2 number, since 2×20473536546² (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 (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1521520 + ... + 1534916.

It is an arithmetic number, because the mean of its divisors is an integer number (940539600).

Almost surely, 2^20473536546 is an apocalyptic number.

20473536546 is an abundant number, since it is smaller than the sum of its proper divisors (24672364254).

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

20473536546 is a wasteful number, since it uses less digits than its factorization.

20473536546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14903 (or 14900 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 45.

The spelling of 20473536546 in words is "twenty billion, four hundred seventy-three million, five hundred thirty-six thousand, five hundred forty-six".