151566544436542 has 4 divisors (see below), whose sum is σ = 227349816654816. Its totient is φ = 75783272218270.

The previous prime is 151566544436497. The next prime is 151566544436557. The reversal of 151566544436542 is 245634445665151.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37891636109134 + ... + 37891636109137.

It is an arithmetic number, because the mean of its divisors is an integer number (56837454163704).

Almost surely, 2^{151566544436542} is an apocalyptic number.

151566544436542 is a deficient number, since it is larger than the sum of its proper divisors (75783272218274).

151566544436542 is an equidigital number, since it uses as much as digits as its factorization.

151566544436542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75783272218273.

The product of its digits is 207360000, while the sum is 61.

The spelling of 151566544436542 in words is "one hundred fifty-one trillion, five hundred sixty-six billion, five hundred forty-four million, four hundred thirty-six thousand, five hundred forty-two".