20753405452106 has 16 divisors (see below), whose sum is σ = 31336549973568. Its totient is φ = 10307890032000.

The previous prime is 20753405452099. The next prime is 20753405452151. The reversal of 20753405452106 is 60125450435702.

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, 43580666 + ... + 44054298.

It is an arithmetic number, because the mean of its divisors is an integer number (1958534373348).

Almost surely, 2^{20753405452106} is an apocalyptic number.

20753405452106 is a deficient number, since it is larger than the sum of its proper divisors (10583144521462).

20753405452106 is a wasteful number, since it uses less digits than its factorization.

20753405452106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618877.

The product of its (nonzero) digits is 1008000, while the sum is 44.

Adding to 20753405452106 its reverse (60125450435702), we get a palindrome (80878855887808).

The spelling of 20753405452106 in words is "twenty trillion, seven hundred fifty-three billion, four hundred five million, four hundred fifty-two thousand, one hundred six".