190954055405 has 8 divisors (see below), whose sum is σ = 239107686912. Its totient is φ = 146121364048.

The previous prime is 190954055401. The next prime is 190954055447. The reversal of 190954055405 is 504550459091.

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

It is a cyclic number.

It is not a de Polignac number, because 190954055405 - 2² = 190954055401 is a prime.

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 190954055405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190954055401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830234909 + ... + 830235138.

It is an arithmetic number, because the mean of its divisors is an integer number (29888460864).

Almost surely, 2^190954055405 is an apocalyptic number.

It is an amenable number.

190954055405 is a deficient number, since it is larger than the sum of its proper divisors (48153631507).

190954055405 is a wasteful number, since it uses less digits than its factorization.

190954055405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660470075.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 190954055405 in words is "one hundred ninety billion, nine hundred fifty-four million, fifty-five thousand, four hundred five".