542242000660 has 12 divisors (see below), whose sum is σ = 1138708201428. Its totient is φ = 216896800256.

The previous prime is 542242000639. The next prime is 542242000669. The reversal of 542242000660 is 66000242245.

It can be written as a sum of positive squares in 2 ways, for example, as 69728739844 + 472513260816 = 264062^2 + 687396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542242000669) 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, 13556049997 + ... + 13556050036.

It is an arithmetic number, because the mean of its divisors is an integer number (94892350119).

Almost surely, 2^542242000660 is an apocalyptic number.

It is an amenable number.

542242000660 is an abundant number, since it is smaller than the sum of its proper divisors (596466200768).

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

542242000660 is a wasteful number, since it uses less digits than its factorization.

542242000660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27112100042 (or 27112100040 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 542242000660 in words is "five hundred forty-two billion, two hundred forty-two million, six hundred sixty", and thus it is an aban number.