20411447712 has 48 divisors (see below), whose sum is σ = 54132446592. Its totient is φ = 6733670400.

The previous prime is 20411447659. The next prime is 20411447723. The reversal of 20411447712 is 21774411402.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086664 + ... + 1105287.

It is an arithmetic number, because the mean of its divisors is an integer number (1127759304).

Almost surely, 2^20411447712 is an apocalyptic number.

It is an amenable number.

20411447712 is an abundant number, since it is smaller than the sum of its proper divisors (33720998880).

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

20411447712 is a wasteful number, since it uses less digits than its factorization.

20411447712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192061 (or 2192053 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The spelling of 20411447712 in words is "twenty billion, four hundred eleven million, four hundred forty-seven thousand, seven hundred twelve".