16109394205 has 8 divisors (see below), whose sum is σ = 19400069304. Its totient is φ = 12841651200.

The previous prime is 16109394151. The next prime is 16109394211. The reversal of 16109394205 is 50249390161.

It can be written as a sum of positive squares in 4 ways, for example, as 6744187129 + 9365207076 = 82123^2 + 96774^2 .

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

It is not a de Polignac number, because 16109394205 - 2⁹ = 16109393693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5731476 + ... + 5734285.

It is an arithmetic number, because the mean of its divisors is an integer number (2425008663).

Almost surely, 2^16109394205 is an apocalyptic number.

It is an amenable number.

16109394205 is a deficient number, since it is larger than the sum of its proper divisors (3290675099).

16109394205 is a wasteful number, since it uses less digits than its factorization.

16109394205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11466047.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 16109394205 in words is "sixteen billion, one hundred nine million, three hundred ninety-four thousand, two hundred five".