542666666244 has 24 divisors (see below), whose sum is σ = 1266352456320. Its totient is φ = 180870283744.

The previous prime is 542666666239. The next prime is 542666666249. The reversal of 542666666244 is 442666666245.

It is an interprime number because it is at equal distance from previous prime (542666666239) and next prime (542666666249).

It is a super-2 number, since 2×542666666244² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (542666666249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203839 + ... + 2437670.

It is an arithmetic number, because the mean of its divisors is an integer number (52764685680).

Almost surely, 2^542666666244 is an apocalyptic number.

It is an amenable number.

542666666244 is an abundant number, since it is smaller than the sum of its proper divisors (723685790076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542666666244 is a wasteful number, since it uses less digits than its factorization.

542666666244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651259 (or 4651257 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 57.

Subtracting from 542666666244 its reverse (442666666245), we obtain a palindrome (99999999999).

The spelling of 542666666244 in words is "five hundred forty-two billion, six hundred sixty-six million, six hundred sixty-six thousand, two hundred forty-four".