165040302816 has 96 divisors (see below), whose sum is σ = 496895616000. Its totient is φ = 53238798720.

The previous prime is 165040302793. The next prime is 165040302829. The reversal of 165040302816 is 618203040561.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3054166 + ... + 3107733.

It is an arithmetic number, because the mean of its divisors is an integer number (5175996000).

Almost surely, 2^165040302816 is an apocalyptic number.

165040302816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165040302816 is an abundant number, since it is smaller than the sum of its proper divisors (331855313184).

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

165040302816 is a wasteful number, since it uses less digits than its factorization.

165040302816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161949 (or 6161935 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

It can be divided in two parts, 165040 and 302816, that added together give a square (467856 = 684²).

The spelling of 165040302816 in words is "one hundred sixty-five billion, forty million, three hundred two thousand, eight hundred sixteen".