21076216152 has 64 divisors (see below), whose sum is σ = 55190868480. Its totient is φ = 6694355712.

The previous prime is 21076216103. The next prime is 21076216159. The reversal of 21076216152 is 25161267012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21076216159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72588 + ... + 217764.

It is an arithmetic number, because the mean of its divisors is an integer number (862357320).

Almost surely, 2^21076216152 is an apocalyptic number.

It is a pronic number, being equal to 145176×145177.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21076216152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27595434240).

21076216152 is an abundant number, since it is smaller than the sum of its proper divisors (34114652328).

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

21076216152 is a wasteful number, since it uses less digits than its factorization.

21076216152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145472 (or 145468 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 21076216152 in words is "twenty-one billion, seventy-six million, two hundred sixteen thousand, one hundred fifty-two".