21150162442263 has 16 divisors (see below), whose sum is σ = 28894257425376. Its totient is φ = 13753236226560.

The previous prime is 21150162442237. The next prime is 21150162442271. The reversal of 21150162442263 is 36224426105112.

It is not a de Polignac number, because 21150162442263 - 2²⁸ = 21149894006807 is a prime.

It is a super-2 number, since 2×21150162442263² (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 (21150162442363) 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, 17971006 + ... + 19111707.

It is an arithmetic number, because the mean of its divisors is an integer number (1805891089086).

Almost surely, 2^{21150162442263} is an apocalyptic number.

21150162442263 is a deficient number, since it is larger than the sum of its proper divisors (7744094983113).

21150162442263 is a wasteful number, since it uses less digits than its factorization.

21150162442263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37087394.

The product of its (nonzero) digits is 138240, while the sum is 39.

Adding to 21150162442263 its reverse (36224426105112), we get a palindrome (57374588547375).

The spelling of 21150162442263 in words is "twenty-one trillion, one hundred fifty billion, one hundred sixty-two million, four hundred forty-two thousand, two hundred sixty-three".