21436200152 has 16 divisors (see below), whose sum is σ = 40758973200. Its totient is φ = 10567140640.

The previous prime is 21436200151. The next prime is 21436200161. The reversal of 21436200152 is 25100263412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21436200151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18869327 + ... + 18870462.

It is an arithmetic number, because the mean of its divisors is an integer number (2547435825).

Almost surely, 2^21436200152 is an apocalyptic number.

It is an amenable number.

21436200152 is a deficient number, since it is larger than the sum of its proper divisors (19322773048).

21436200152 is a wasteful number, since it uses less digits than its factorization.

21436200152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37739866 (or 37739862 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 21436200152 its reverse (25100263412), we get a palindrome (46536463564).

The spelling of 21436200152 in words is "twenty-one billion, four hundred thirty-six million, two hundred thousand, one hundred fifty-two".