161002648 has 16 divisors (see below), whose sum is σ = 319637880. Its totient is φ = 75765888.

The previous prime is 161002643. The next prime is 161002657. The reversal of 161002648 is 846200161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161002643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591786 + ... + 592057.

Almost surely, 2^161002648 is an apocalyptic number.

It is an amenable number.

161002648 is a deficient number, since it is larger than the sum of its proper divisors (158635232).

161002648 is a wasteful number, since it uses less digits than its factorization.

161002648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183866 (or 1183862 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 161002648 is about 12688.6818858383. The cubic root of 161002648 is about 544.0151650184.

The spelling of 161002648 in words is "one hundred sixty-one million, two thousand, six hundred forty-eight".