161015506550147 has 2 divisors, whose sum is σ = 161015506550148. Its totient is φ = 161015506550146.

The previous prime is 161015506550089. The next prime is 161015506550201. The reversal of 161015506550147 is 741055605510161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161015506550147 - 2²⁸ = 161015238114691 is a prime.

It is a super-2 number, since 2×161015506550147² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161015506550047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80507753275073 + 80507753275074.

It is an arithmetic number, because the mean of its divisors is an integer number (80507753275074).

Almost surely, 2^{161015506550147} is an apocalyptic number.

161015506550147 is a deficient number, since it is larger than the sum of its proper divisors (1).

161015506550147 is an equidigital number, since it uses as much as digits as its factorization.

161015506550147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630000, while the sum is 47.

The spelling of 161015506550147 in words is "one hundred sixty-one trillion, fifteen billion, five hundred six million, five hundred fifty thousand, one hundred forty-seven".