165516542 has 8 divisors (see below), whose sum is σ = 248450736. Its totient is φ = 82699632.

The previous prime is 165516529. The next prime is 165516551. The reversal of 165516542 is 245615561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×165516542³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25703 + ... + 31490.

It is an arithmetic number, because the mean of its divisors is an integer number (31056342).

Almost surely, 2^165516542 is an apocalyptic number.

165516542 is a deficient number, since it is larger than the sum of its proper divisors (82934194).

165516542 is a wasteful number, since it uses less digits than its factorization.

165516542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58642.

The product of its digits is 36000, while the sum is 35.

The square root of 165516542 is about 12865.3232372918. The cubic root of 165516542 is about 549.0524091117.

The spelling of 165516542 in words is "one hundred sixty-five million, five hundred sixteen thousand, five hundred forty-two".