20346512511652 has 24 divisors (see below), whose sum is σ = 38412228400056. Its totient is φ = 9394172256768.

The previous prime is 20346512511631. The next prime is 20346512511671. The reversal of 20346512511652 is 25611521564302.

It can be written as a sum of positive squares in 4 ways, for example, as 4208102465956 + 16138410045696 = 2051366^2 + 4017264^2 .

It is a super-2 number, since 2×20346512511652² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20346512511599 and 20346512511608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2822764503 + ... + 2822771710.

It is an arithmetic number, because the mean of its divisors is an integer number (1600509516669).

Almost surely, 2^{20346512511652} is an apocalyptic number.

It is an amenable number.

20346512511652 is a deficient number, since it is larger than the sum of its proper divisors (18065715888404).

20346512511652 is a wasteful number, since it uses less digits than its factorization.

20346512511652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5645536287 (or 5645536285 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 20346512511652 in words is "twenty trillion, three hundred forty-six billion, five hundred twelve million, five hundred eleven thousand, six hundred fifty-two".