20516263122 has 16 divisors (see below), whose sum is σ = 41036814720. Its totient is φ = 6838039632.

The previous prime is 20516263093. The next prime is 20516263123. The reversal of 20516263122 is 22136261502.

It is a super-3 number, since 3×20516263122³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 20516263122.

It is not an unprimeable number, because it can be changed into a prime (20516263123) 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, 114733 + ... + 232800.

It is an arithmetic number, because the mean of its divisors is an integer number (2564800920).

Almost surely, 2^20516263122 is an apocalyptic number.

20516263122 is an abundant number, since it is smaller than the sum of its proper divisors (20520551598).

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

20516263122 is a wasteful number, since it uses less digits than its factorization.

20516263122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357377.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 20516263122 in words is "twenty billion, five hundred sixteen million, two hundred sixty-three thousand, one hundred twenty-two".