199514905645 has 16 divisors (see below), whose sum is σ = 272538940032. Its totient is φ = 138792976960.

The previous prime is 199514905621. The next prime is 199514905663. The reversal of 199514905645 is 546509415991.

199514905645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 199514905645 - 2¹⁹ = 199514381357 is a prime.

It is a super-3 number, since 3×199514905645³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199514905645.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78858382 + ... + 78860911.

It is an arithmetic number, because the mean of its divisors is an integer number (17033683752).

Almost surely, 2^199514905645 is an apocalyptic number.

It is an amenable number.

199514905645 is a deficient number, since it is larger than the sum of its proper divisors (73024034387).

199514905645 is a wasteful number, since it uses less digits than its factorization.

199514905645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157719332.

The product of its (nonzero) digits is 8748000, while the sum is 58.

The spelling of 199514905645 in words is "one hundred ninety-nine billion, five hundred fourteen million, nine hundred five thousand, six hundred forty-five".