66149160 has 128 divisors (see below), whose sum is σ = 247449600. Its totient is φ = 13743360.

The previous prime is 66149147. The next prime is 66149177. The reversal of 66149160 is 6194166.

It is a super-2 number, since 2×66149160² = 8751422737411200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 5661 + ... + 12819.

It is an arithmetic number, because the mean of its divisors is an integer number (1933200).

Almost surely, 2^66149160 is an apocalyptic number.

66149160 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 66149160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123724800).

66149160 is an abundant number, since it is smaller than the sum of its proper divisors (181300440).

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

66149160 is a wasteful number, since it uses less digits than its factorization.

66149160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191 (or 7187 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 66149160 is about 8133.2133870937. The cubic root of 66149160 is about 404.4282130864.

The spelling of 66149160 in words is "sixty-six million, one hundred forty-nine thousand, one hundred sixty".