20346501324552 has 64 divisors (see below), whose sum is σ = 54779588028480. Its totient is φ = 6260399546112.

The previous prime is 20346501324517. The next prime is 20346501324553. The reversal of 20346501324552 is 25542310564302.

It is a super-2 number, since 2×20346501324552² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20346501324553) 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, 38416563 + ... + 38942589.

It is an arithmetic number, because the mean of its divisors is an integer number (855931062945).

Almost surely, 2^{20346501324552} is an apocalyptic number.

It is an amenable number.

20346501324552 is an abundant number, since it is smaller than the sum of its proper divisors (34433086703928).

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

20346501324552 is a wasteful number, since it uses less digits than its factorization.

20346501324552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650022 (or 650018 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

Adding to 20346501324552 its reverse (25542310564302), we get a palindrome (45888811888854).

The spelling of 20346501324552 in words is "twenty trillion, three hundred forty-six billion, five hundred one million, three hundred twenty-four thousand, five hundred fifty-two".