165641030 has 16 divisors (see below), whose sum is σ = 315692640. Its totient is φ = 62358912.

The previous prime is 165641027. The next prime is 165641057. The reversal of 165641030 is 30146561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487010 + ... + 487349.

It is an arithmetic number, because the mean of its divisors is an integer number (19730790).

Almost surely, 2^165641030 is an apocalyptic number.

165641030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165641030 is a deficient number, since it is larger than the sum of its proper divisors (150051610).

165641030 is a wasteful number, since it uses less digits than its factorization.

165641030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974383.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 165641030 is about 12870.1604496603. The cubic root of 165641030 is about 549.1900253821.

Adding to 165641030 its reverse (30146561), we get a palindrome (195787591).

The spelling of 165641030 in words is "one hundred sixty-five million, six hundred forty-one thousand, thirty".