42230020442661 has 12 divisors (see below), whose sum is σ = 61000901683488. Its totient is φ = 28152431608104.

The previous prime is 42230020442581. The next prime is 42230020442677. The reversal of 42230020442661 is 16624402003224.

42230020442661 is a `hidden beast` number, since 4 + 2 + 23 + 0 + 0 + 204 + 426 + 6 + 1 = 666.

It is not a de Polignac number, because 42230020442661 - 2³³ = 42221430508069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42230020442261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75987225 + ... + 76540958.

It is an arithmetic number, because the mean of its divisors is an integer number (5083408473624).

Almost surely, 2^{42230020442661} is an apocalyptic number.

It is an amenable number.

42230020442661 is a deficient number, since it is larger than the sum of its proper divisors (18770881240827).

42230020442661 is a wasteful number, since it uses less digits than its factorization.

42230020442661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152558952 (or 152558949 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 42230020442661 its reverse (16624402003224), we get a palindrome (58854422445885).

The spelling of 42230020442661 in words is "forty-two trillion, two hundred thirty billion, twenty million, four hundred forty-two thousand, six hundred sixty-one".