21776160112 has 40 divisors (see below), whose sum is σ = 48715763936. Its totient is φ = 9236422656.

The previous prime is 21776160101. The next prime is 21776160113. The reversal of 21776160112 is 21106167712.

It is a super-2 number, since 2×21776160112² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21776160113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991353 + ... + 1013080.

Almost surely, 2^21776160112 is an apocalyptic number.

It is an amenable number.

21776160112 is an abundant number, since it is smaller than the sum of its proper divisors (26939603824).

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

21776160112 is a wasteful number, since it uses less digits than its factorization.

21776160112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004545 (or 2004539 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 21776160112 in words is "twenty-one billion, seven hundred seventy-six million, one hundred sixty thousand, one hundred twelve".