66294120 has 128 divisors (see below), whose sum is σ = 209018880. Its totient is φ = 16800000.

The previous prime is 66294113. The next prime is 66294131. The reversal of 66294120 is 2149266.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 263995 + ... + 264245.

It is an arithmetic number, because the mean of its divisors is an integer number (1632960).

Almost surely, 2^66294120 is an apocalyptic number.

66294120 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 66294120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104509440).

66294120 is an abundant number, since it is smaller than the sum of its proper divisors (142724760).

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

66294120 is a wasteful number, since it uses less digits than its factorization.

66294120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 66294120 is about 8142.1201170211. The cubic root of 66294120 is about 404.7234203692.

The spelling of 66294120 in words is "sixty-six million, two hundred ninety-four thousand, one hundred twenty".