161307567555 has 8 divisors (see below), whose sum is σ = 258092108112. Its totient is φ = 86030702688.

The previous prime is 161307567521. The next prime is 161307567557. The reversal of 161307567555 is 555765703161.

161307567555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161307567555 - 2⁸ = 161307567299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161307567498 and 161307567507.

It is not an unprimeable number, because it can be changed into a prime (161307567557) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5376918904 + ... + 5376918933.

It is an arithmetic number, because the mean of its divisors is an integer number (32261513514).

Almost surely, 2^161307567555 is an apocalyptic number.

161307567555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161307567555 is a deficient number, since it is larger than the sum of its proper divisors (96784540557).

161307567555 is a wasteful number, since it uses less digits than its factorization.

161307567555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10753837845.

The product of its (nonzero) digits is 3307500, while the sum is 51.

The spelling of 161307567555 in words is "one hundred sixty-one billion, three hundred seven million, five hundred sixty-seven thousand, five hundred fifty-five".