20026609680 has 960 divisors, whose sum is σ = 84419739648. Its totient is φ = 3874590720.

The previous prime is 20026609667. The next prime is 20026609693. The reversal of 20026609680 is 8690662002.

It is an interprime number because it is at equal distance from previous prime (20026609667) and next prime (20026609693).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 157689777 + ... + 157689903.

Almost surely, 2^20026609680 is an apocalyptic number.

20026609680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20026609680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42209869824).

20026609680 is an abundant number, since it is smaller than the sum of its proper divisors (64393129968).

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

20026609680 is a wasteful number, since it uses less digits than its factorization.

20026609680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 20026609680 in words is "twenty billion, twenty-six million, six hundred nine thousand, six hundred eighty".