66736707074012 has 24 divisors (see below), whose sum is σ = 118983053836416. Its totient is φ = 32745336175728.

The previous prime is 66736707073963. The next prime is 66736707074047. The reversal of 66736707074012 is 21047070763766.

It is a super-2 number, since 2×66736707074012² (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, 473346938 + ... + 473487905.

It is an arithmetic number, because the mean of its divisors is an integer number (4957627243184).

Almost surely, 2^{66736707074012} is an apocalyptic number.

It is an amenable number.

66736707074012 is a deficient number, since it is larger than the sum of its proper divisors (52246346762404).

66736707074012 is a wasteful number, since it uses less digits than its factorization.

66736707074012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946835177 (or 946835175 counting only the distinct ones).

The product of its (nonzero) digits is 12446784, while the sum is 56.

The spelling of 66736707074012 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred seven million, seventy-four thousand, twelve".