66123076 has 12 divisors (see below), whose sum is σ = 115960320. Its totient is φ = 32991560.

The previous prime is 66123073. The next prime is 66123077. The reversal of 66123076 is 67032166.

It is a super-2 number, since 2×66123076² = 8744522359403552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66123073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15340 + ... + 19171.

It is an arithmetic number, because the mean of its divisors is an integer number (9663360).

Almost surely, 2^66123076 is an apocalyptic number.

It is an amenable number.

66123076 is a deficient number, since it is larger than the sum of its proper divisors (49837244).

66123076 is a wasteful number, since it uses less digits than its factorization.

66123076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34994 (or 34992 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 66123076 is about 8131.6096807459. The cubic root of 66123076 is about 404.3750479246.

The spelling of 66123076 in words is "sixty-six million, one hundred twenty-three thousand, seventy-six".