191499161001 has 8 divisors (see below), whose sum is σ = 260149803840. Its totient is φ = 125257312752.

The previous prime is 191499160991. The next prime is 191499161059. The reversal of 191499161001 is 100161994191.

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

It is not a de Polignac number, because 191499161001 - 2²⁵ = 191465606569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (191499161071) 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, 602198461 + ... + 602198778.

It is an arithmetic number, because the mean of its divisors is an integer number (32518725480).

Almost surely, 2^191499161001 is an apocalyptic number.

It is an amenable number.

191499161001 is a deficient number, since it is larger than the sum of its proper divisors (68650642839).

191499161001 is a wasteful number, since it uses less digits than its factorization.

191499161001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204397295.

The product of its (nonzero) digits is 17496, while the sum is 42.

The spelling of 191499161001 in words is "one hundred ninety-one billion, four hundred ninety-nine million, one hundred sixty-one thousand, one".