165563002 has 48 divisors (see below), whose sum is σ = 288271872. Its totient is φ = 70680000.

The previous prime is 165562931. The next prime is 165563003. The reversal of 165563002 is 200365561.

It is a super-2 number, since 2×165563002² = 54822215262504008, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (165563003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 866727 + ... + 866917.

It is an arithmetic number, because the mean of its divisors is an integer number (6005664).

Almost surely, 2^165563002 is an apocalyptic number.

165563002 is a deficient number, since it is larger than the sum of its proper divisors (122708870).

165563002 is a wasteful number, since it uses less digits than its factorization.

165563002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 165563002 is about 12867.1287395440. The cubic root of 165563002 is about 549.1037767640.

The spelling of 165563002 in words is "one hundred sixty-five million, five hundred sixty-three thousand, two".