165630552 has 16 divisors (see below), whose sum is σ = 414076440. Its totient is φ = 55210176.

The previous prime is 165630547. The next prime is 165630557. The reversal of 165630552 is 255036561.

It is an interprime number because it is at equal distance from previous prime (165630547) and next prime (165630557).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165630557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3450613 + ... + 3450660.

Almost surely, 2^165630552 is an apocalyptic number.

165630552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165630552 is an abundant number, since it is smaller than the sum of its proper divisors (248445888).

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

165630552 is a wasteful number, since it uses less digits than its factorization.

165630552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6901282 (or 6901278 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 165630552 is about 12869.7533775904. The cubic root of 165630552 is about 549.1784450499.

The spelling of 165630552 in words is "one hundred sixty-five million, six hundred thirty thousand, five hundred fifty-two".