161103799699 has 8 divisors (see below), whose sum is σ = 166362793520. Its totient is φ = 155913551136.

The previous prime is 161103799697. The next prime is 161103799733. The reversal of 161103799699 is 996997301161.

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 161103799699 - 2¹ = 161103799697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161103799697) 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, 17181552 + ... + 17190925.

It is an arithmetic number, because the mean of its divisors is an integer number (20795349190).

Almost surely, 2^161103799699 is an apocalyptic number.

161103799699 is a deficient number, since it is larger than the sum of its proper divisors (5258993821).

161103799699 is a wasteful number, since it uses less digits than its factorization.

161103799699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34372629.

The product of its (nonzero) digits is 4960116, while the sum is 61.

The spelling of 161103799699 in words is "one hundred sixty-one billion, one hundred three million, seven hundred ninety-nine thousand, six hundred ninety-nine".