20058443604 has 18 divisors (see below), whose sum is σ = 50703288090. Its totient is φ = 6686147856.

The previous prime is 20058443597. The next prime is 20058443677. The reversal of 20058443604 is 40634485002.

20058443604 is a `hidden beast` number, since 2 + 0 + 0 + 5 + 8 + 4 + 43 + 604 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16692123204 + 3366320400 = 129198^2 + 58020^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 557178989 = 20058443604 / (2 + 0 + 0 + 5 + 8 + 4 + 4 + 3 + 6 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278589459 + ... + 278589530.

Almost surely, 2^20058443604 is an apocalyptic number.

It is an amenable number.

20058443604 is an abundant number, since it is smaller than the sum of its proper divisors (30644844486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20058443604 is a wasteful number, since it uses less digits than its factorization.

20058443604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557178999 (or 557178994 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 20058443604 in words is "twenty billion, fifty-eight million, four hundred forty-three thousand, six hundred four".