20542553465342 has 8 divisors (see below), whose sum is σ = 31876376067000. Its totient is φ = 9917094776344.

The previous prime is 20542553465263. The next prime is 20542553465347. The reversal of 20542553465342 is 24356435524502.

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

It is a super-2 number, since 2×20542553465342² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20542553465347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177090978092 + ... + 177090978207.

It is an arithmetic number, because the mean of its divisors is an integer number (3984547008375).

Almost surely, 2^{20542553465342} is an apocalyptic number.

20542553465342 is a deficient number, since it is larger than the sum of its proper divisors (11333822601658).

20542553465342 is a wasteful number, since it uses less digits than its factorization.

20542553465342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354181956330.

The product of its (nonzero) digits is 17280000, while the sum is 50.

Adding to 20542553465342 its reverse (24356435524502), we get a palindrome (44898988989844).

The spelling of 20542553465342 in words is "twenty trillion, five hundred forty-two billion, five hundred fifty-three million, four hundred sixty-five thousand, three hundred forty-two".