66692160 has 280 divisors, whose sum is σ = 247838976. Its totient is φ = 17003520.

The previous prime is 66692159. The next prime is 66692177. The reversal of 66692160 is 6129666.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 803479 + ... + 803561.

Almost surely, 2^66692160 is an apocalyptic number.

66692160 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 66692160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123919488).

66692160 is an abundant number, since it is smaller than the sum of its proper divisors (181146816).

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

66692160 is a wasteful number, since it uses less digits than its factorization.

66692160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 66692160 is about 8166.5268015234. The cubic root of 66692160 is about 405.5318116524.

The spelling of 66692160 in words is "sixty-six million, six hundred ninety-two thousand, one hundred sixty".