161015506510207 has 2 divisors, whose sum is σ = 161015506510208. Its totient is φ = 161015506510206.

The previous prime is 161015506510147. The next prime is 161015506510237. The reversal of 161015506510207 is 702015605510161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161015506510207 - 2¹¹ = 161015506508159 is a prime.

It is a super-3 number, since 3×161015506510207³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161015506510207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161015506510237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80507753255103 + 80507753255104.

It is an arithmetic number, because the mean of its divisors is an integer number (80507753255104).

Almost surely, 2^{161015506510207} is an apocalyptic number.

161015506510207 is a deficient number, since it is larger than the sum of its proper divisors (1).

161015506510207 is an equidigital number, since it uses as much as digits as its factorization.

161015506510207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 40.

The spelling of 161015506510207 in words is "one hundred sixty-one trillion, fifteen billion, five hundred six million, five hundred ten thousand, two hundred seven".