42155345442263 has 16 divisors (see below), whose sum is σ = 42661652040000. Its totient is φ = 41649774262272.

The previous prime is 42155345442191. The next prime is 42155345442359. The reversal of 42155345442263 is 36224454355124.

It is a cyclic number.

It is not a de Polignac number, because 42155345442263 - 2²² = 42155341247959 is a prime.

It is a super-2 number, since 2×42155345442263² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42155345441263) 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, 866495963 + ... + 866544611.

It is an arithmetic number, because the mean of its divisors is an integer number (2666353252500).

Almost surely, 2^{42155345442263} is an apocalyptic number.

42155345442263 is a deficient number, since it is larger than the sum of its proper divisors (506306597737).

42155345442263 is a wasteful number, since it uses less digits than its factorization.

42155345442263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55994.

The product of its digits is 13824000, while the sum is 50.

Adding to 42155345442263 its reverse (36224454355124), we get a palindrome (78379799797387).

The spelling of 42155345442263 in words is "forty-two trillion, one hundred fifty-five billion, three hundred forty-five million, four hundred forty-two thousand, two hundred sixty-three".