165628827 has 32 divisors (see below), whose sum is σ = 302005760. Its totient is φ = 87363360.

The previous prime is 165628823. The next prime is 165628829. The reversal of 165628827 is 728826561.

165628827 is a `hidden beast` number, since 1 + 6 + 562 + 8 + 82 + 7 = 666.

It is not a de Polignac number, because 165628827 - 2² = 165628823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165628823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31249 + ... + 36162.

It is an arithmetic number, because the mean of its divisors is an integer number (9437680).

Almost surely, 2^165628827 is an apocalyptic number.

165628827 is a deficient number, since it is larger than the sum of its proper divisors (136376933).

165628827 is a wasteful number, since it uses less digits than its factorization.

165628827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67440 (or 67434 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 165628827 is about 12869.6863598147. The cubic root of 165628827 is about 549.1765385255.

The spelling of 165628827 in words is "one hundred sixty-five million, six hundred twenty-eight thousand, eight hundred twenty-seven".