20466713628 has 36 divisors (see below), whose sum is σ = 51750441288. Its totient is φ = 6820241760.

The previous prime is 20466713623. The next prime is 20466713647. The reversal of 20466713628 is 82631766402.

20466713628 is a `hidden beast` number, since 2 + 0 + 4 + 6 + 6 + 7 + 13 + 628 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×20466713628³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466713623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44250 + ... + 207102.

It is an arithmetic number, because the mean of its divisors is an integer number (1437512258).

Almost surely, 2^20466713628 is an apocalyptic number.

It is an amenable number.

20466713628 is an abundant number, since it is smaller than the sum of its proper divisors (31283727660).

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

20466713628 is a wasteful number, since it uses less digits than its factorization.

20466713628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166354 (or 166349 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 20466713628 in words is "twenty billion, four hundred sixty-six million, seven hundred thirteen thousand, six hundred twenty-eight".