66754110227512 has 32 divisors (see below), whose sum is σ = 126025442172000. Its totient is φ = 33147945705600.

The previous prime is 66754110227507. The next prime is 66754110227537. The reversal of 66754110227512 is 21572201145766.

It is a super-2 number, since 2×66754110227512² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37891939 + ... + 39614482.

It is an arithmetic number, because the mean of its divisors is an integer number (3938295067875).

Almost surely, 2^{66754110227512} is an apocalyptic number.

It is an amenable number.

66754110227512 is a deficient number, since it is larger than the sum of its proper divisors (59271331944488).

66754110227512 is a wasteful number, since it uses less digits than its factorization.

66754110227512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77507167 (or 77507163 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 66754110227512 in words is "sixty-six trillion, seven hundred fifty-four billion, one hundred ten million, two hundred twenty-seven thousand, five hundred twelve".