65166156 has 108 divisors (see below), whose sum is σ = 186044040. Its totient is φ = 19071360.

The previous prime is 65166133. The next prime is 65166163.

65166156 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 65166156.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 732160 + ... + 732248.

It is an arithmetic number, because the mean of its divisors is an integer number (1722630).

Almost surely, 2^65166156 is an apocalyptic number.

65166156 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65166156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93022020).

65166156 is an abundant number, since it is smaller than the sum of its proper divisors (120877884).

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

65166156 is a wasteful number, since it uses less digits than its factorization.

65166156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 148 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 65166156 is about 8072.5557291356. Note that the first 3 decimals coincide. The cubic root of 65166156 is about 402.4148831757.

The spelling of 65166156 in words is "sixty-five million, one hundred sixty-six thousand, one hundred fifty-six".