161430345624 has 32 divisors (see below), whose sum is σ = 416594442240. Its totient is φ = 52074304800.

The previous prime is 161430345551. The next prime is 161430345631. The reversal of 161430345624 is 426543034161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108487392 + ... + 108488879.

It is an arithmetic number, because the mean of its divisors is an integer number (13018576320).

Almost surely, 2^161430345624 is an apocalyptic number.

It is an amenable number.

161430345624 is an abundant number, since it is smaller than the sum of its proper divisors (255164096616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161430345624 is a wasteful number, since it uses less digits than its factorization.

161430345624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216976311 (or 216976307 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 161430345624 its reverse (426543034161), we get a palindrome (587973379785).

The spelling of 161430345624 in words is "one hundred sixty-one billion, four hundred thirty million, three hundred forty-five thousand, six hundred twenty-four".