156446245365161 has 4 divisors (see below), whose sum is σ = 156448191124992. Its totient is φ = 156444299605332.

The previous prime is 156446245365143. The next prime is 156446245365167. The reversal of 156446245365161 is 161563542644651.

156446245365161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 156446245365161 - 2⁶ = 156446245365097 is a prime.

It is a super-3 number, since 3×156446245365161³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156446245365161.

It is not an unprimeable number, because it can be changed into a prime (156446245365167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972759305 + ... + 972920118.

It is an arithmetic number, because the mean of its divisors is an integer number (39112047781248).

Almost surely, 2^{156446245365161} is an apocalyptic number.

It is an amenable number.

156446245365161 is a deficient number, since it is larger than the sum of its proper divisors (1945759831).

156446245365161 is an equidigital number, since it uses as much as digits as its factorization.

156446245365161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945759830.

The product of its digits is 62208000, while the sum is 59.

The spelling of 156446245365161 in words is "one hundred fifty-six trillion, four hundred forty-six billion, two hundred forty-five million, three hundred sixty-five thousand, one hundred sixty-one".