166376540 has 96 divisors (see below), whose sum is σ = 409328640. Its totient is φ = 56160000.

The previous prime is 166376533. The next prime is 166376543. The reversal of 166376540 is 45673661.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 166376494 and 166376503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166376543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221165 + ... + 221915.

It is an arithmetic number, because the mean of its divisors is an integer number (4263840).

Almost surely, 2^166376540 is an apocalyptic number.

166376540 is a gapful number since it is divisible by the number (10) 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 166376540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204664320).

166376540 is an abundant number, since it is smaller than the sum of its proper divisors (242952100).

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

166376540 is a wasteful number, since it uses less digits than its factorization.

166376540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 166376540 is about 12898.7030355769. The cubic root of 166376540 is about 550.0016969645.

The spelling of 166376540 in words is "one hundred sixty-six million, three hundred seventy-six thousand, five hundred forty".