165370473450 has 192 divisors, whose sum is σ = 560846603520. Its totient is φ = 34891326720.

The previous prime is 165370473391. The next prime is 165370473481. The reversal of 165370473450 is 54374073561.

165370473450 is a `hidden beast` number, since 1 + 6 + 537 + 0 + 4 + 73 + 45 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 165370473396 and 165370473405.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 550209 + ... + 795908.

It is an arithmetic number, because the mean of its divisors is an integer number (2921076060).

Almost surely, 2^165370473450 is an apocalyptic number.

165370473450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165370473450 is an abundant number, since it is smaller than the sum of its proper divisors (395476130070).

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

165370473450 is a wasteful number, since it uses less digits than its factorization.

165370473450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346158 (or 1346147 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 165370473450 in words is "one hundred sixty-five billion, three hundred seventy million, four hundred seventy-three thousand, four hundred fifty".