165656201053 has 12 divisors (see below), whose sum is σ = 192766029120. Its totient is φ = 141943932312.

The previous prime is 165656201033. The next prime is 165656201057. The reversal of 165656201053 is 350102656561.

It is a de Polignac number, because none of the positive numbers 2^k-165656201053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165656200997 and 165656201015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165656201057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411043 + ... + 707296.

It is an arithmetic number, because the mean of its divisors is an integer number (16063835760).

Almost surely, 2^165656201053 is an apocalyptic number.

It is an amenable number.

165656201053 is a deficient number, since it is larger than the sum of its proper divisors (27109828067).

165656201053 is a wasteful number, since it uses less digits than its factorization.

165656201053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121376 (or 1121369 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 165656201053 in words is "one hundred sixty-five billion, six hundred fifty-six million, two hundred one thousand, fifty-three".