20545601342 has 32 divisors (see below), whose sum is σ = 35566136832. Its totient is φ = 8719376544.

The previous prime is 20545601327. The next prime is 20545601347. The reversal of 20545601342 is 24310654502.

It is a junction number, because it is equal to n+sod(n) for n = 20545601299 and 20545601308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20545601347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615863 + ... + 648365.

It is an arithmetic number, because the mean of its divisors is an integer number (1111441776).

Almost surely, 2^20545601342 is an apocalyptic number.

20545601342 is a deficient number, since it is larger than the sum of its proper divisors (15020535490).

20545601342 is a wasteful number, since it uses less digits than its factorization.

20545601342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32952.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 20545601342 in words is "twenty billion, five hundred forty-five million, six hundred one thousand, three hundred forty-two".