21150163156263 has 16 divisors (see below), whose sum is σ = 28226852234496. Its totient is φ = 14086797717440.

The previous prime is 21150163156219. The next prime is 21150163156373. The reversal of 21150163156263 is 36265136105112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21150163156263 - 2¹⁴ = 21150163139879 is a prime.

It is a super-2 number, since 2×21150163156263² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21150163156063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12695428 + ... + 14264438.

It is an arithmetic number, because the mean of its divisors is an integer number (1764178264656).

Almost surely, 2^{21150163156263} is an apocalyptic number.

21150163156263 is a deficient number, since it is larger than the sum of its proper divisors (7076689078233).

21150163156263 is a wasteful number, since it uses less digits than its factorization.

21150163156263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573254.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 21150163156263 in words is "twenty-one trillion, one hundred fifty billion, one hundred sixty-three million, one hundred fifty-six thousand, two hundred sixty-three".