20146105577545 has 8 divisors (see below), whose sum is σ = 24175520186760. Its totient is φ = 16116755466240.

The previous prime is 20146105577537. The next prime is 20146105577617. The reversal of 20146105577545 is 54577550164102.

20146105577545 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2259321634816 + 17886783942729 = 1503104^2 + 4229277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20146105577545 - 2³ = 20146105577537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20146105577492 and 20146105577501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15434616 + ... + 16688905.

It is an arithmetic number, because the mean of its divisors is an integer number (3021940023345).

Almost surely, 2^{20146105577545} is an apocalyptic number.

It is an amenable number.

20146105577545 is a deficient number, since it is larger than the sum of its proper divisors (4029414609215).

20146105577545 is a wasteful number, since it uses less digits than its factorization.

20146105577545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32248955.

The product of its (nonzero) digits is 5880000, while the sum is 52.

The spelling of 20146105577545 in words is "twenty trillion, one hundred forty-six billion, one hundred five million, five hundred seventy-seven thousand, five hundred forty-five".