19299116146 has 4 divisors (see below), whose sum is σ = 28948674222. Its totient is φ = 9649558072.

The previous prime is 19299116143. The next prime is 19299116147. The reversal of 19299116146 is 64161199291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18033535521 + 1265580625 = 134289^2 + 35575^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19299116146.

It is not an unprimeable number, because it can be changed into a prime (19299116143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4824779035 + ... + 4824779038.

Almost surely, 2^19299116146 is an apocalyptic number.

19299116146 is a deficient number, since it is larger than the sum of its proper divisors (9649558076).

19299116146 is an equidigital number, since it uses as much as digits as its factorization.

19299116146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9649558075.

The product of its digits is 209952, while the sum is 49.

The spelling of 19299116146 in words is "nineteen billion, two hundred ninety-nine million, one hundred sixteen thousand, one hundred forty-six".