20546213052 has 48 divisors (see below), whose sum is σ = 48532579200. Its totient is φ = 6764577600.

The previous prime is 20546212993. The next prime is 20546213057. The reversal of 20546213052 is 25031264502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20546213057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487599 + ... + 528057.

It is an arithmetic number, because the mean of its divisors is an integer number (1011095400).

Almost surely, 2^20546213052 is an apocalyptic number.

It is an amenable number.

20546213052 is an abundant number, since it is smaller than the sum of its proper divisors (27986366148).

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

20546213052 is a wasteful number, since it uses less digits than its factorization.

20546213052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40986 (or 40984 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 20546213052 its reverse (25031264502), we get a palindrome (45577477554).

The spelling of 20546213052 in words is "twenty billion, five hundred forty-six million, two hundred thirteen thousand, fifty-two".