161500652 has 24 divisors (see below), whose sum is σ = 293154960. Its totient is φ = 77757120.

The previous prime is 161500649. The next prime is 161500657. The reversal of 161500652 is 256005161.

It is not an unprimeable number, because it can be changed into a prime (161500657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47183 + ... + 50489.

It is an arithmetic number, because the mean of its divisors is an integer number (12214790).

Almost surely, 2^161500652 is an apocalyptic number.

It is an amenable number.

161500652 is a deficient number, since it is larger than the sum of its proper divisors (131654308).

161500652 is a wasteful number, since it uses less digits than its factorization.

161500652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761 (or 3759 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 161500652 is about 12708.2906797098. The cubic root of 161500652 is about 544.5754930162.

The spelling of 161500652 in words is "one hundred sixty-one million, five hundred thousand, six hundred fifty-two".