542166525661245 has 32 divisors (see below), whose sum is σ = 873304390857600. Its totient is φ = 287209568321280.

The previous prime is 542166525661231. The next prime is 542166525661331.

542166525661245 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 542166525661245 - 2¹⁷ = 542166525530173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121108747 + ... + 125505623.

It is an arithmetic number, because the mean of its divisors is an integer number (27290762214300).

Almost surely, 2^{542166525661245} is an apocalyptic number.

It is an amenable number.

542166525661245 is a deficient number, since it is larger than the sum of its proper divisors (331137865196355).

542166525661245 is a wasteful number, since it uses less digits than its factorization.

542166525661245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452205.

The product of its digits is 103680000, while the sum is 60.

The spelling of 542166525661245 in words is "five hundred forty-two trillion, one hundred sixty-six billion, five hundred twenty-five million, six hundred sixty-one thousand, two hundred forty-five".