145619550255199 has 4 divisors (see below), whose sum is σ = 147061327980600. Its totient is φ = 144177772529800.

The previous prime is 145619550255161. The next prime is 145619550255217. The reversal of 145619550255199 is 991552055916541.

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

It is a cyclic number.

It is not a de Polignac number, because 145619550255199 - 2⁹ = 145619550254687 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145619550255149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720888862549 + ... + 720888862750.

It is an arithmetic number, because the mean of its divisors is an integer number (36765331995150).

Almost surely, 2^{145619550255199} is an apocalyptic number.

145619550255199 is a deficient number, since it is larger than the sum of its proper divisors (1441777725401).

145619550255199 is a wasteful number, since it uses less digits than its factorization.

145619550255199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441777725400.

The product of its (nonzero) digits is 109350000, while the sum is 67.

The spelling of 145619550255199 in words is "one hundred forty-five trillion, six hundred nineteen billion, five hundred fifty million, two hundred fifty-five thousand, one hundred ninety-nine".