160736400743777 has 4 divisors (see below), whose sum is σ = 160736426561556. Its totient is φ = 160736374926000.

The previous prime is 160736400743749. The next prime is 160736400743869. The reversal of 160736400743777 is 777347004637061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 64343355287761 + 96393045456016 = 8021431^2 + 9817996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160736400743777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160736400743377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2810027 + ... + 18148527.

It is an arithmetic number, because the mean of its divisors is an integer number (40184106640389).

Almost surely, 2^{160736400743777} is an apocalyptic number.

It is an amenable number.

160736400743777 is a deficient number, since it is larger than the sum of its proper divisors (25817779).

160736400743777 is a wasteful number, since it uses less digits than its factorization.

160736400743777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25817778.

The product of its (nonzero) digits is 87127488, while the sum is 62.

The spelling of 160736400743777 in words is "one hundred sixty trillion, seven hundred thirty-six billion, four hundred million, seven hundred forty-three thousand, seven hundred seventy-seven".