161792545745 has 16 divisors (see below), whose sum is σ = 196069386240. Its totient is φ = 128155577664.

The previous prime is 161792545721. The next prime is 161792545751. The reversal of 161792545745 is 547545297161.

It is a cyclic number.

It is not a de Polignac number, because 161792545745 - 2¹² = 161792541649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3436907 + ... + 3483663.

It is an arithmetic number, because the mean of its divisors is an integer number (12254336640).

Almost surely, 2^161792545745 is an apocalyptic number.

It is an amenable number.

161792545745 is a deficient number, since it is larger than the sum of its proper divisors (34276840495).

161792545745 is a wasteful number, since it uses less digits than its factorization.

161792545745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53584.

The product of its digits is 10584000, while the sum is 56.

The spelling of 161792545745 in words is "one hundred sixty-one billion, seven hundred ninety-two million, five hundred forty-five thousand, seven hundred forty-five".