20116555604 has 24 divisors (see below), whose sum is σ = 36487161480. Its totient is φ = 9696640896.

The previous prime is 20116555603. The next prime is 20116555607. The reversal of 20116555604 is 40655561102.

It can be written as a sum of positive squares in 4 ways, for example, as 9476633104 + 10639922500 = 97348^2 + 103150^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116555603) 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, 607367 + ... + 639630.

It is an arithmetic number, because the mean of its divisors is an integer number (1520298395).

Almost surely, 2^20116555604 is an apocalyptic number.

It is an amenable number.

20116555604 is a deficient number, since it is larger than the sum of its proper divisors (16370605876).

20116555604 is a wasteful number, since it uses less digits than its factorization.

20116555604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247147 (or 1247145 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 20116555604 in words is "twenty billion, one hundred sixteen million, five hundred fifty-five thousand, six hundred four".