20611302444 has 120 divisors (see below), whose sum is σ = 56533631616. Its totient is φ = 6539616000.

The previous prime is 20611302433. The next prime is 20611302463. The reversal of 20611302444 is 44420311602.

It is a happy number.

20611302444 is a `hidden beast` number, since 2 + 0 + 611 + 3 + 0 + 2 + 4 + 44 = 666.

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, 595864 + ... + 629504.

Almost surely, 2^20611302444 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 20611302444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28266815808).

20611302444 is an abundant number, since it is smaller than the sum of its proper divisors (35922329172).

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

20611302444 is a wasteful number, since it uses less digits than its factorization.

20611302444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33749 (or 33738 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 20611302444 in words is "twenty billion, six hundred eleven million, three hundred two thousand, four hundred forty-four".