20340770525645 has 16 divisors (see below), whose sum is σ = 25349358745920. Its totient is φ = 15656956850304.

The previous prime is 20340770525629. The next prime is 20340770525657. The reversal of 20340770525645 is 54652507704302.

It is a cyclic number.

It is not a de Polignac number, because 20340770525645 - 2⁴ = 20340770525629 is a prime.

It is a super-3 number, since 3×20340770525645³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20340770525593 and 20340770525602.

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, 706017200 + ... + 706046009.

It is an arithmetic number, because the mean of its divisors is an integer number (1584334921620).

Almost surely, 2^{20340770525645} is an apocalyptic number.

It is an amenable number.

20340770525645 is a deficient number, since it is larger than the sum of its proper divisors (5008588220275).

20340770525645 is a wasteful number, since it uses less digits than its factorization.

20340770525645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412063324.

The product of its (nonzero) digits is 7056000, while the sum is 50.

The spelling of 20340770525645 in words is "twenty trillion, three hundred forty billion, seven hundred seventy million, five hundred twenty-five thousand, six hundred forty-five".