420606051111 has 16 divisors (see below), whose sum is σ = 625865107200. Its totient is φ = 279168769944.

The previous prime is 420606051097. The next prime is 420606051161. The reversal of 420606051111 is 111150606024.

420606051111 is a `hidden beast` number, since 4 + 2 + 0 + 606 + 0 + 51 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 420606051111 - 2¹⁷ = 420605920039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420606051161) 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, 34306651 + ... + 34318908.

It is an arithmetic number, because the mean of its divisors is an integer number (39116569200).

Almost surely, 2^420606051111 is an apocalyptic number.

420606051111 is a deficient number, since it is larger than the sum of its proper divisors (205259056089).

420606051111 is a wasteful number, since it uses less digits than its factorization.

420606051111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68625795 (or 68625789 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 420606051111 its reverse (111150606024), we get a palindrome (531756657135).

The spelling of 420606051111 in words is "four hundred twenty billion, six hundred six million, fifty-one thousand, one hundred eleven".