165961048 has 32 divisors (see below), whose sum is σ = 357336000. Its totient is φ = 71465760.

The previous prime is 165961043. The next prime is 165961057. The reversal of 165961048 is 840169561.

165961048 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165961048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165961043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47958 + ... + 51301.

It is an arithmetic number, because the mean of its divisors is an integer number (11166750).

Almost surely, 2^165961048 is an apocalyptic number.

It is an amenable number.

165961048 is an abundant number, since it is smaller than the sum of its proper divisors (191374952).

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

165961048 is a wasteful number, since it uses less digits than its factorization.

165961048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99295 (or 99291 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 165961048 is about 12882.5870072746. The cubic root of 165961048 is about 549.5434757150.

The spelling of 165961048 in words is "one hundred sixty-five million, nine hundred sixty-one thousand, forty-eight".