66260376 has 128 divisors (see below), whose sum is σ = 226598400. Its totient is φ = 17470080.

The previous prime is 66260351. The next prime is 66260399. The reversal of 66260376 is 67306266.

It is a super-2 number, since 2×66260376² = 8780874855322752, which contains 22 as substring.

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 66260376.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17971 + ... + 21341.

It is an arithmetic number, because the mean of its divisors is an integer number (1770300).

Almost surely, 2^66260376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66260376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113299200).

66260376 is an abundant number, since it is smaller than the sum of its proper divisors (160338024).

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

66260376 is a wasteful number, since it uses less digits than its factorization.

66260376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3406 (or 3396 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 66260376 is about 8140.0476657081. The cubic root of 66260376 is about 404.6547400452.

The spelling of 66260376 in words is "sixty-six million, two hundred sixty thousand, three hundred seventy-six".