156065605061 has 2 divisors, whose sum is σ = 156065605062. Its totient is φ = 156065605060.

The previous prime is 156065605057. The next prime is 156065605079. The reversal of 156065605061 is 160506560651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154945364161 + 1120240900 = 393631^2 + 33470^2 .

It is a cyclic number.

It is not a de Polignac number, because 156065605061 - 2² = 156065605057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156065605051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78032802530 + 78032802531.

It is an arithmetic number, because the mean of its divisors is an integer number (78032802531).

Almost surely, 2^156065605061 is an apocalyptic number.

It is an amenable number.

156065605061 is a deficient number, since it is larger than the sum of its proper divisors (1).

156065605061 is an equidigital number, since it uses as much as digits as its factorization.

156065605061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 156065605061 in words is "one hundred fifty-six billion, sixty-five million, six hundred five thousand, sixty-one".