165151642 has 8 divisors (see below), whose sum is σ = 250132896. Its totient is φ = 81774012.

The previous prime is 165151631. The next prime is 165151697. The reversal of 165151642 is 246151561.

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

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, 400648 + ... + 401059.

It is an arithmetic number, because the mean of its divisors is an integer number (31266612).

Almost surely, 2^165151642 is an apocalyptic number.

165151642 is a deficient number, since it is larger than the sum of its proper divisors (84981254).

165151642 is a wasteful number, since it uses less digits than its factorization.

165151642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801812.

The product of its digits is 7200, while the sum is 31.

The square root of 165151642 is about 12851.1338799345. The cubic root of 165151642 is about 548.6486294590.

The spelling of 165151642 in words is "one hundred sixty-five million, one hundred fifty-one thousand, six hundred forty-two".