165652523645 has 32 divisors (see below), whose sum is σ = 234615674880. Its totient is φ = 109876101120.

The previous prime is 165652523633. The next prime is 165652523671. The reversal of 165652523645 is 546325256561.

It is not a de Polignac number, because 165652523645 - 2¹⁶ = 165652458109 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 165652523593 and 165652523602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2432621 + ... + 2499789.

It is an arithmetic number, because the mean of its divisors is an integer number (7331739840).

Almost surely, 2^165652523645 is an apocalyptic number.

It is an amenable number.

165652523645 is a deficient number, since it is larger than the sum of its proper divisors (68963151235).

165652523645 is a wasteful number, since it uses less digits than its factorization.

165652523645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69485.

The product of its digits is 6480000, while the sum is 50.

The spelling of 165652523645 in words is "one hundred sixty-five billion, six hundred fifty-two million, five hundred twenty-three thousand, six hundred forty-five".