66761148 has 24 divisors (see below), whose sum is σ = 155957200. Its totient is φ = 22227840.

The previous prime is 66761143. The next prime is 66761153. The reversal of 66761148 is 84116766.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66761143) and next prime (66761153).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66761143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9528 + ... + 14976.

Almost surely, 2^66761148 is an apocalyptic number.

It is an amenable number.

66761148 is an abundant number, since it is smaller than the sum of its proper divisors (89196052).

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

66761148 is a wasteful number, since it uses less digits than its factorization.

66761148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6477 (or 6475 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 66761148 is about 8170.7495372212. The cubic root of 66761148 is about 405.6715941372.

The spelling of 66761148 in words is "sixty-six million, seven hundred sixty-one thousand, one hundred forty-eight".