20676061431455 has 32 divisors (see below), whose sum is σ = 25489174411008. Its totient is φ = 16091265433600.

The previous prime is 20676061431449. The next prime is 20676061431491. The reversal of 20676061431455 is 55413416067602.

It is not a de Polignac number, because 20676061431455 - 2²² = 20676057237151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165779999 + ... + 165904671.

It is an arithmetic number, because the mean of its divisors is an integer number (796536700344).

Almost surely, 2^{20676061431455} is an apocalyptic number.

20676061431455 is a deficient number, since it is larger than the sum of its proper divisors (4813112979553).

20676061431455 is a wasteful number, since it uses less digits than its factorization.

20676061431455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127027.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 20676061431455 in words is "twenty trillion, six hundred seventy-six billion, sixty-one million, four hundred thirty-one thousand, four hundred fifty-five".