161550562628 has 48 divisors (see below), whose sum is σ = 348023539584. Its totient is φ = 63897534720.

The previous prime is 161550562597. The next prime is 161550562631. The reversal of 161550562628 is 826265055161.

161550562628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1930823 + ... + 2012753.

It is an arithmetic number, because the mean of its divisors is an integer number (7250490408).

Almost surely, 2^161550562628 is an apocalyptic number.

It is an amenable number.

161550562628 is an abundant number, since it is smaller than the sum of its proper divisors (186472976956).

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

161550562628 is a wasteful number, since it uses less digits than its factorization.

161550562628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87372 (or 87370 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 161550562628 in words is "one hundred sixty-one billion, five hundred fifty million, five hundred sixty-two thousand, six hundred twenty-eight".