166154028 has 24 divisors (see below), whose sum is σ = 388680432. Its totient is φ = 55243584.

The previous prime is 166154003. The next prime is 166154029. The reversal of 166154028 is 820451661.

It is a super-2 number, since 2×166154028² = 55214322041249568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166154028.

It is not an unprimeable number, because it can be changed into a prime (166154029) 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, 12675 + ... + 22202.

It is an arithmetic number, because the mean of its divisors is an integer number (16195018).

Almost surely, 2^166154028 is an apocalyptic number.

It is an amenable number.

166154028 is an abundant number, since it is smaller than the sum of its proper divisors (222526404).

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

166154028 is a wasteful number, since it uses less digits than its factorization.

166154028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35281 (or 35279 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 166154028 is about 12890.0747864394. The cubic root of 166154028 is about 549.7563968036.

The spelling of 166154028 in words is "one hundred sixty-six million, one hundred fifty-four thousand, twenty-eight".