161435301499 has 2 divisors, whose sum is σ = 161435301500. Its totient is φ = 161435301498.

The previous prime is 161435301487. The next prime is 161435301557. The reversal of 161435301499 is 994103534161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161435301499 - 2¹¹ = 161435299451 is a prime.

It is a super-2 number, since 2×161435301499² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161435301449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80717650749 + 80717650750.

It is an arithmetic number, because the mean of its divisors is an integer number (80717650750).

Almost surely, 2^161435301499 is an apocalyptic number.

161435301499 is a deficient number, since it is larger than the sum of its proper divisors (1).

161435301499 is an equidigital number, since it uses as much as digits as its factorization.

161435301499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 161435301499 in words is "one hundred sixty-one billion, four hundred thirty-five million, three hundred one thousand, four hundred ninety-nine".