155554062216442 has 8 divisors (see below), whose sum is σ = 233405473663476. Its totient is φ = 77752237661952.

The previous prime is 155554062216437. The next prime is 155554062216473. The reversal of 155554062216442 is 244612260455551.

It can be written as a sum of positive squares in 2 ways, for example, as 118297577907961 + 37256484308481 = 10876469^2 + 6103809^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 155554062216442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12396715293 + ... + 12396727840.

Almost surely, 2^{155554062216442} is an apocalyptic number.

155554062216442 is a deficient number, since it is larger than the sum of its proper divisors (77851411447034).

155554062216442 is a wasteful number, since it uses less digits than its factorization.

155554062216442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24793446272.

The product of its (nonzero) digits is 11520000, while the sum is 52.

The spelling of 155554062216442 in words is "one hundred fifty-five trillion, five hundred fifty-four billion, sixty-two million, two hundred sixteen thousand, four hundred forty-two".