20126025516 has 24 divisors (see below), whose sum is σ = 46968579504. Its totient is φ = 6707553280.

The previous prime is 20126025473. The next prime is 20126025571. The reversal of 20126025516 is 61552062102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63825 + ... + 210536.

It is an arithmetic number, because the mean of its divisors is an integer number (1957024146).

Almost surely, 2^20126025516 is an apocalyptic number.

It is an amenable number.

20126025516 is an abundant number, since it is smaller than the sum of its proper divisors (26842553988).

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

20126025516 is a wasteful number, since it uses less digits than its factorization.

20126025516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280481 (or 280479 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 20126025516 its reverse (61552062102), we get a palindrome (81678087618).

The spelling of 20126025516 in words is "twenty billion, one hundred twenty-six million, twenty-five thousand, five hundred sixteen".