165672810736 has 10 divisors (see below), whose sum is σ = 320991070832. Its totient is φ = 82836405360.

The previous prime is 165672810659. The next prime is 165672810739. The reversal of 165672810736 is 637018276561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165672810739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5177275320 + ... + 5177275351.

Almost surely, 2^165672810736 is an apocalyptic number.

165672810736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165672810736 is a deficient number, since it is larger than the sum of its proper divisors (155318260096).

165672810736 is a wasteful number, since it uses less digits than its factorization.

165672810736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10354550679 (or 10354550673 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 165672810736 in words is "one hundred sixty-five billion, six hundred seventy-two million, eight hundred ten thousand, seven hundred thirty-six".