20051616612346 has 16 divisors (see below), whose sum is σ = 32811850158048. Its totient is φ = 9114339553200.

The previous prime is 20051616612343. The next prime is 20051616612353. The reversal of 20051616612346 is 64321661615002.

It is not an unprimeable number, because it can be changed into a prime (20051616612341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5632036 + ... + 8474848.

It is an arithmetic number, because the mean of its divisors is an integer number (2050740634878).

Almost surely, 2^{20051616612346} is an apocalyptic number.

20051616612346 is a deficient number, since it is larger than the sum of its proper divisors (12760233545702).

20051616612346 is a wasteful number, since it uses less digits than its factorization.

20051616612346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163437.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 20051616612346 in words is "twenty trillion, fifty-one billion, six hundred sixteen million, six hundred twelve thousand, three hundred forty-six".