161402447426 has 32 divisors (see below), whose sum is σ = 278353005120. Its totient is φ = 69418641600.

The previous prime is 161402447413. The next prime is 161402447431. The reversal of 161402447426 is 624744204161.

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 15 ways as a sum of consecutive naturals, for example, 108020 + ... + 578336.

It is an arithmetic number, because the mean of its divisors is an integer number (8698531410).

Almost surely, 2^161402447426 is an apocalyptic number.

161402447426 is a deficient number, since it is larger than the sum of its proper divisors (116950557694).

161402447426 is a wasteful number, since it uses less digits than its factorization.

161402447426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471170.

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 161402447426 in words is "one hundred sixty-one billion, four hundred two million, four hundred forty-seven thousand, four hundred twenty-six".