66367260 has 72 divisors (see below), whose sum is σ = 202137936. Its totient is φ = 17625600.

The previous prime is 66367241. The next prime is 66367267. The reversal of 66367260 is 6276366.

It is a super-2 number, since 2×66367260² = 8809226399815200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66367267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54660 + ... + 55860.

Almost surely, 2^66367260 is an apocalyptic number.

66367260 is a gapful number since it is divisible by the number (60) 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 66367260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101068968).

66367260 is an abundant number, since it is smaller than the sum of its proper divisors (135770676).

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

66367260 is a wasteful number, since it uses less digits than its factorization.

66367260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1518 counting only the distinct ones).

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

The square root of 66367260 is about 8146.6103380486. The cubic root of 66367260 is about 404.8722047638.

The spelling of 66367260 in words is "sixty-six million, three hundred sixty-seven thousand, two hundred sixty".