542220816708 has 18 divisors (see below), whose sum is σ = 1370613731214. Its totient is φ = 180740272224.

The previous prime is 542220816707. The next prime is 542220816727. The reversal of 542220816708 is 807618022245.

542220816708 is a `hidden beast` number, since 5 + 422 + 208 + 16 + 7 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 526266095364 + 15954721344 = 725442^2 + 126312^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (542220816707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7530844641 + ... + 7530844712.

Almost surely, 2^542220816708 is an apocalyptic number.

It is an amenable number.

542220816708 is an abundant number, since it is smaller than the sum of its proper divisors (828392914506).

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

542220816708 is a wasteful number, since it uses less digits than its factorization.

542220816708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15061689363 (or 15061689358 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 542220816708 in words is "five hundred forty-two billion, two hundred twenty million, eight hundred sixteen thousand, seven hundred eight".