165565001148 has 24 divisors (see below), whose sum is σ = 386373743952. Its totient is φ = 55180418304.

The previous prime is 165565001141. The next prime is 165565001183. The reversal of 165565001148 is 841100565561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165565001141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901965 + ... + 1069892.

It is an arithmetic number, because the mean of its divisors is an integer number (16098905998).

Almost surely, 2^165565001148 is an apocalyptic number.

It is an amenable number.

165565001148 is an abundant number, since it is smaller than the sum of its proper divisors (220808742804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165565001148 is a wasteful number, since it uses less digits than its factorization.

165565001148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978861 (or 1978859 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 165565001148 in words is "one hundred sixty-five billion, five hundred sixty-five million, one thousand, one hundred forty-eight".