542542531066 has 8 divisors (see below), whose sum is σ = 814373893044. Its totient is φ = 271084566720.

The previous prime is 542542531051. The next prime is 542542531067. The reversal of 542542531066 is 660135245245.

It can be written as a sum of positive squares in 2 ways, for example, as 326298000625 + 216244530441 = 571225^2 + 465021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (542542531067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93345775 + ... + 93351586.

Almost surely, 2^542542531066 is an apocalyptic number.

542542531066 is a deficient number, since it is larger than the sum of its proper divisors (271831361978).

542542531066 is a wasteful number, since it uses less digits than its factorization.

542542531066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186698816.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 542542531066 in words is "five hundred forty-two billion, five hundred forty-two million, five hundred thirty-one thousand, sixty-six".