20465271626508 has 96 divisors (see below), whose sum is σ = 54792159672320. Its totient is φ = 6598988948160.

The previous prime is 20465271626413. The next prime is 20465271626537. The reversal of 20465271626508 is 80562617256402.

20465271626508 is a `hidden beast` number, since 2 + 0 + 4 + 6 + 5 + 2 + 7 + 1 + 626 + 5 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6904935 + ... + 9413217.

Almost surely, 2^{20465271626508} 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 20465271626508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27396079836160).

20465271626508 is an abundant number, since it is smaller than the sum of its proper divisors (34326888045812).

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

20465271626508 is a wasteful number, since it uses less digits than its factorization.

20465271626508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510764 (or 2510756 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 20465271626508 in words is "twenty trillion, four hundred sixty-five billion, two hundred seventy-one million, six hundred twenty-six thousand, five hundred eight".