165403548135 has 72 divisors (see below), whose sum is σ = 333641426976. Its totient is φ = 75582702720.

The previous prime is 165403548127. The next prime is 165403548151. The reversal of 165403548135 is 531845304561.

165403548135 is a `hidden beast` number, since 1 + 6 + 540 + 35 + 48 + 1 + 35 = 666.

It is not a de Polignac number, because 165403548135 - 2³ = 165403548127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6030222 + ... + 6057588.

It is an arithmetic number, because the mean of its divisors is an integer number (4633908708).

Almost surely, 2^165403548135 is an apocalyptic number.

165403548135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165403548135 is an abundant number, since it is smaller than the sum of its proper divisors (168237878841).

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

165403548135 is a wasteful number, since it uses less digits than its factorization.

165403548135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30133 (or 30123 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 165403548135 in words is "one hundred sixty-five billion, four hundred three million, five hundred forty-eight thousand, one hundred thirty-five".