21152154150126 has 12 divisors (see below), whose sum is σ = 45829667325312. Its totient is φ = 7050718050036.

The previous prime is 21152154150059. The next prime is 21152154150157. The reversal of 21152154150126 is 62105145125112.

21152154150126 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 215 + 415 + 0 + 1 + 26 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 587559837486 + ... + 587559837521.

It is an arithmetic number, because the mean of its divisors is an integer number (3819138943776).

Almost surely, 2^{21152154150126} is an apocalyptic number.

21152154150126 is an abundant number, since it is smaller than the sum of its proper divisors (24677513175186).

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

21152154150126 is a wasteful number, since it uses less digits than its factorization.

21152154150126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175119675015 (or 1175119675012 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

Adding to 21152154150126 its reverse (62105145125112), we get a palindrome (83257299275238).

The spelling of 21152154150126 in words is "twenty-one trillion, one hundred fifty-two billion, one hundred fifty-four million, one hundred fifty thousand, one hundred twenty-six".