21250342150504 has 32 divisors (see below), whose sum is σ = 39890591596800. Its totient is φ = 10612852398720.

The previous prime is 21250342150423. The next prime is 21250342150519. The reversal of 21250342150504 is 40505124305212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21250342150504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144763657 + ... + 144910375.

It is an arithmetic number, because the mean of its divisors is an integer number (1246580987400).

Almost surely, 2^{21250342150504} is an apocalyptic number.

It is an amenable number.

21250342150504 is a deficient number, since it is larger than the sum of its proper divisors (18640249446296).

21250342150504 is a wasteful number, since it uses less digits than its factorization.

21250342150504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167593 (or 167589 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 21250342150504 its reverse (40505124305212), we get a palindrome (61755466455716).

The spelling of 21250342150504 in words is "twenty-one trillion, two hundred fifty billion, three hundred forty-two million, one hundred fifty thousand, five hundred four".