20647424058 has 16 divisors (see below), whose sum is σ = 41299203456. Its totient is φ = 6881748800.

The previous prime is 20647424029. The next prime is 20647424087. The reversal of 20647424058 is 85042474602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20647424029) and next prime (20647424087).

It is a super-2 number, since 2×20647424058² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) 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 in 7 ways as a sum of consecutive naturals, for example, 118143 + ... + 235058.

It is an arithmetic number, because the mean of its divisors is an integer number (2581200216).

Almost surely, 2^20647424058 is an apocalyptic number.

20647424058 is an abundant number, since it is smaller than the sum of its proper divisors (20651779398).

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

20647424058 is a wasteful number, since it uses less digits than its factorization.

20647424058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362949.

The product of its (nonzero) digits is 430080, while the sum is 42.

The spelling of 20647424058 in words is "twenty billion, six hundred forty-seven million, four hundred twenty-four thousand, fifty-eight".