90199910190001 has 4 divisors (see below), whose sum is σ = 90200073345904. Its totient is φ = 90199747034100.

The previous prime is 90199910189953. The next prime is 90199910190011. The reversal of 90199910190001 is 10009101999109.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90199910190001 - 2⁹ = 90199910189489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90199910190011) 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, 80745855 + ... + 81855316.

It is an arithmetic number, because the mean of its divisors is an integer number (22550018336476).

Almost surely, 2^{90199910190001} is an apocalyptic number.

It is an amenable number.

90199910190001 is a deficient number, since it is larger than the sum of its proper divisors (163155903).

90199910190001 is a wasteful number, since it uses less digits than its factorization.

90199910190001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163155902.

The product of its (nonzero) digits is 59049, while the sum is 49.

The spelling of 90199910190001 in words is "ninety trillion, one hundred ninety-nine billion, nine hundred ten million, one hundred ninety thousand, one".