161550060599 has 4 divisors (see below), whose sum is σ = 161552160000. Its totient is φ = 161547961200.

The previous prime is 161550060527. The next prime is 161550060613. The reversal of 161550060599 is 995060055161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 995060055161 = 1367 ⋅727915183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161550060599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161550060499) 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, 929702 + ... + 1089699.

It is an arithmetic number, because the mean of its divisors is an integer number (40388040000).

Almost surely, 2^161550060599 is an apocalyptic number.

161550060599 is a deficient number, since it is larger than the sum of its proper divisors (2099401).

161550060599 is an equidigital number, since it uses as much as digits as its factorization.

161550060599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099400.

The product of its (nonzero) digits is 364500, while the sum is 47.

The spelling of 161550060599 in words is "one hundred sixty-one billion, five hundred fifty million, sixty thousand, five hundred ninety-nine".