20630626272 has 144 divisors (see below), whose sum is σ = 59621365440. Its totient is φ = 6765797376.

The previous prime is 20630626253. The next prime is 20630626283. The reversal of 20630626272 is 27262603602.

20630626272 is a `hidden beast` number, since 2 + 0 + 6 + 3 + 0 + 626 + 27 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7119928 + ... + 7122824.

It is an arithmetic number, because the mean of its divisors is an integer number (414037260).

Almost surely, 2^20630626272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20630626272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29810682720).

20630626272 is an abundant number, since it is smaller than the sum of its proper divisors (38990739168).

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

20630626272 is a wasteful number, since it uses less digits than its factorization.

20630626272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305 (or 3294 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 20630626272 in words is "twenty billion, six hundred thirty million, six hundred twenty-six thousand, two hundred seventy-two".