165477330453 has 16 divisors (see below), whose sum is σ = 223038389376. Its totient is φ = 109123721280.

The previous prime is 165477330451. The next prime is 165477330463. The reversal of 165477330453 is 354033774561.

It is not a de Polignac number, because 165477330453 - 2¹ = 165477330451 is a prime.

It is a super-2 number, since 2×165477330453² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165477330451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706993 + ... + 911478.

It is an arithmetic number, because the mean of its divisors is an integer number (13939899336).

Almost surely, 2^165477330453 is an apocalyptic number.

It is an amenable number.

165477330453 is a deficient number, since it is larger than the sum of its proper divisors (57561058923).

165477330453 is a wasteful number, since it uses less digits than its factorization.

165477330453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618844.

The product of its (nonzero) digits is 3175200, while the sum is 48.

The spelling of 165477330453 in words is "one hundred sixty-five billion, four hundred seventy-seven million, three hundred thirty thousand, four hundred fifty-three".