20461026366 has 96 divisors (see below), whose sum is σ = 50723532288. Its totient is φ = 5900368320.

The previous prime is 20461026361. The next prime is 20461026367. The reversal of 20461026366 is 66362016402.

20461026366 is a `hidden beast` number, since 2 + 0 + 4 + 6 + 10 + 2 + 636 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20461026366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20461026361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 885735 + ... + 908541.

It is an arithmetic number, because the mean of its divisors is an integer number (528370128).

Almost surely, 2^20461026366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20461026366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25361766144).

20461026366 is an abundant number, since it is smaller than the sum of its proper divisors (30262505922).

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

20461026366 is a wasteful number, since it uses less digits than its factorization.

20461026366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23046 (or 23043 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 20461026366 in words is "twenty billion, four hundred sixty-one million, twenty-six thousand, three hundred sixty-six".