20614612544 has 14 divisors (see below), whose sum is σ = 40907121894. Its totient is φ = 10307306240.

The previous prime is 20614612511. The next prime is 20614612553. The reversal of 20614612544 is 44521641602.

It can be written as a sum of positive squares in only one way, i.e., 20588806144 + 25806400 = 143488^2 + 5080^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161051597 + ... + 161051724.

Almost surely, 2^20614612544 is an apocalyptic number.

It is an amenable number.

20614612544 is a deficient number, since it is larger than the sum of its proper divisors (20292509350).

20614612544 is an equidigital number, since it uses as much as digits as its factorization.

20614612544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322103333 (or 322103323 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 20614612544 in words is "twenty billion, six hundred fourteen million, six hundred twelve thousand, five hundred forty-four".