20670706505074 has 4 divisors (see below), whose sum is σ = 31006059757614. Its totient is φ = 10335353252536.

The previous prime is 20670706505041. The next prime is 20670706505201. The reversal of 20670706505074 is 47050560707602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10666801724049 + 10003904781025 = 3266007^2 + 3162895^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5167676626267 + ... + 5167676626270.

Almost surely, 2^{20670706505074} is an apocalyptic number.

20670706505074 is a deficient number, since it is larger than the sum of its proper divisors (10335353252540).

20670706505074 is a wasteful number, since it uses less digits than its factorization.

20670706505074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10335353252539.

The product of its (nonzero) digits is 2469600, while the sum is 49.

The spelling of 20670706505074 in words is "twenty trillion, six hundred seventy billion, seven hundred six million, five hundred five thousand, seventy-four".