542220243045645 has 16 divisors (see below), whose sum is σ = 867553743316032. Its totient is φ = 289183678143360.

The previous prime is 542220243045629. The next prime is 542220243045653. The reversal of 542220243045645 is 546540342022245.

It is not a de Polignac number, because 542220243045645 - 2⁴ = 542220243045629 is a prime.

It is a super-3 number, since 3×542220243045645³ (a number of 45 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 542220243045594 and 542220243045603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18174136 + ... + 37613025.

It is an arithmetic number, because the mean of its divisors is an integer number (54222108957252).

Almost surely, 2^{542220243045645} is an apocalyptic number.

It is an amenable number.

542220243045645 is a deficient number, since it is larger than the sum of its proper divisors (325333500270387).

542220243045645 is a wasteful number, since it uses less digits than its factorization.

542220243045645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56435132.

The product of its (nonzero) digits is 9216000, while the sum is 48.

The spelling of 542220243045645 in words is "five hundred forty-two trillion, two hundred twenty billion, two hundred forty-three million, forty-five thousand, six hundred forty-five".