165195024453216 has 60 divisors (see below), whose sum is σ = 485833978173852. Its totient is φ = 55065008150208.

The previous prime is 165195024453209. The next prime is 165195024453281. The reversal of 165195024453216 is 612354420591561.

It is a happy number.

165195024453216 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 9 + 50 + 2 + 44 + 532 + 16 = 666.

It is a super-2 number, since 2×165195024453216² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31866321570 + ... + 31866326753.

Almost surely, 2^{165195024453216} is an apocalyptic number.

165195024453216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165195024453216 is an abundant number, since it is smaller than the sum of its proper divisors (320638953720636).

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

165195024453216 is an equidigital number, since it uses as much as digits as its factorization.

165195024453216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63732648345 (or 63732648328 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 165195024453216 in words is "one hundred sixty-five trillion, one hundred ninety-five billion, twenty-four million, four hundred fifty-three thousand, two hundred sixteen".