42166474553 has 6 divisors (see below), whose sum is σ = 49050796986. Its totient is φ = 36142692432.

The previous prime is 42166474549. The next prime is 42166474577. The reversal of 42166474553 is 35547466124.

42166474553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 41448073744 + 718400809 = 203588^2 + 26803^2 .

It is not a de Polignac number, because 42166474553 - 2² = 42166474549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42166474498 and 42166474507.

It is not an unprimeable number, because it can be changed into a prime (42166474513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 430270100 + ... + 430270197.

It is an arithmetic number, because the mean of its divisors is an integer number (8175132831).

Almost surely, 2^42166474553 is an apocalyptic number.

It is an amenable number.

42166474553 is a deficient number, since it is larger than the sum of its proper divisors (6884322433).

42166474553 is an equidigital number, since it uses as much as digits as its factorization.

42166474553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860540311 (or 860540304 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 47.

The spelling of 42166474553 in words is "forty-two billion, one hundred sixty-six million, four hundred seventy-four thousand, five hundred fifty-three".