20410540561442 has 64 divisors (see below), whose sum is σ = 35397330739200. Its totient is φ = 8785659472128.

The previous prime is 20410540561399. The next prime is 20410540561447. The reversal of 20410540561442 is 24416504501402.

It is a super-2 number, since 2×20410540561442² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 20410540561396 and 20410540561405.

It is not an unprimeable number, because it can be changed into a prime (20410540561447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5253983 + ... + 8271965.

It is an arithmetic number, because the mean of its divisors is an integer number (553083292800).

Almost surely, 2^{20410540561442} is an apocalyptic number.

20410540561442 is a deficient number, since it is larger than the sum of its proper divisors (14986790177758).

20410540561442 is a wasteful number, since it uses less digits than its factorization.

20410540561442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018088 (or 3018050 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 20410540561442 in words is "twenty trillion, four hundred ten billion, five hundred forty million, five hundred sixty-one thousand, four hundred forty-two".