161349452470 has 16 divisors (see below), whose sum is σ = 290502667728. Its totient is φ = 64523413600.

The previous prime is 161349452447. The next prime is 161349452489. The reversal of 161349452470 is 74254943161.

It is a self number, because there is not a number n which added to its sum of digits gives 161349452470.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004481 + ... + 2083420.

It is an arithmetic number, because the mean of its divisors is an integer number (18156416733).

Almost surely, 2^161349452470 is an apocalyptic number.

161349452470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161349452470 is a deficient number, since it is larger than the sum of its proper divisors (129153215258).

161349452470 is a wasteful number, since it uses less digits than its factorization.

161349452470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091855.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 161349452470 in words is "one hundred sixty-one billion, three hundred forty-nine million, four hundred fifty-two thousand, four hundred seventy".