145613065571 has 2 divisors, whose sum is σ = 145613065572. Its totient is φ = 145613065570.

The previous prime is 145613065567. The next prime is 145613065601. The reversal of 145613065571 is 175560316541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145613065571 - 2² = 145613065567 is a prime.

It is not a weakly prime, because it can be changed into another prime (145613065511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72806532785 + 72806532786.

It is an arithmetic number, because the mean of its divisors is an integer number (72806532786).

Almost surely, 2^145613065571 is an apocalyptic number.

145613065571 is a deficient number, since it is larger than the sum of its proper divisors (1).

145613065571 is an equidigital number, since it uses as much as digits as its factorization.

145613065571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 145613065571 in words is "one hundred forty-five billion, six hundred thirteen million, sixty-five thousand, five hundred seventy-one".