542221405615 has 8 divisors (see below), whose sum is σ = 650704492368. Its totient is φ = 433751254080.

The previous prime is 542221405601. The next prime is 542221405619. The reversal of 542221405615 is 516504122245.

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

It is not a de Polignac number, because 542221405615 - 2⁷ = 542221405487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542221405619) 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, 3141342 + ... + 3309451.

It is an arithmetic number, because the mean of its divisors is an integer number (81338061546).

Almost surely, 2^542221405615 is an apocalyptic number.

542221405615 is a deficient number, since it is larger than the sum of its proper divisors (108483086753).

542221405615 is a wasteful number, since it uses less digits than its factorization.

542221405615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6467609.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 542221405615 in words is "five hundred forty-two billion, two hundred twenty-one million, four hundred five thousand, six hundred fifteen".