28061061166 has 8 divisors (see below), whose sum is σ = 43118216064. Its totient is φ = 13688322480.

The previous prime is 28061061143. The next prime is 28061061167. The reversal of 28061061166 is 66116016082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28061061167) 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, 171103950 + ... + 171104113.

It is an arithmetic number, because the mean of its divisors is an integer number (5389777008).

Almost surely, 2^28061061166 is an apocalyptic number.

28061061166 is a deficient number, since it is larger than the sum of its proper divisors (15057154898).

28061061166 is a wasteful number, since it uses less digits than its factorization.

28061061166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342208106.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 28061061166 in words is "twenty-eight billion, sixty-one million, sixty-one thousand, one hundred sixty-six".