20346242725645 has 16 divisors (see below), whose sum is σ = 24735240622080. Its totient is φ = 16065156086784.

The previous prime is 20346242725631. The next prime is 20346242725687. The reversal of 20346242725645 is 54652724264302.

It is a cyclic number.

It is not a de Polignac number, because 20346242725645 - 2¹⁵ = 20346242692877 is a prime.

It is a super-3 number, since 3×20346242725645³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20346242725592 and 20346242725601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82886065 + ... + 83131174.

It is an arithmetic number, because the mean of its divisors is an integer number (1545952538880).

Almost surely, 2^{20346242725645} is an apocalyptic number.

It is an amenable number.

20346242725645 is a deficient number, since it is larger than the sum of its proper divisors (4388997896435).

20346242725645 is a wasteful number, since it uses less digits than its factorization.

20346242725645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166017564.

The product of its (nonzero) digits is 19353600, while the sum is 52.

Adding to 20346242725645 its reverse (54652724264302), we get a palindrome (74998966989947).

The spelling of 20346242725645 in words is "twenty trillion, three hundred forty-six billion, two hundred forty-two million, seven hundred twenty-five thousand, six hundred forty-five".