20200861026 has 80 divisors (see below), whose sum is σ = 45746363520. Its totient is φ = 6662316960.

The previous prime is 20200861019. The next prime is 20200861033. The reversal of 20200861026 is 62016800202.

20200861026 is a `hidden beast` number, since 2 + 0 + 20 + 0 + 8 + 610 + 26 = 666.

It is an interprime number because it is at equal distance from previous prime (20200861019) and next prime (20200861033).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8254135 + ... + 8256581.

It is an arithmetic number, because the mean of its divisors is an integer number (571829544).

Almost surely, 2^20200861026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20200861026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22873181760).

20200861026 is an abundant number, since it is smaller than the sum of its proper divisors (25545502494).

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

20200861026 is a wasteful number, since it uses less digits than its factorization.

20200861026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 20200861026 in words is "twenty billion, two hundred million, eight hundred sixty-one thousand, twenty-six".