66736703400067 has 6 divisors (see below), whose sum is σ = 67747640324028. Its totient is φ = 65740633195644.

The previous prime is 66736703400061. The next prime is 66736703400139. The reversal of 66736703400067 is 76000430763766.

It is a de Polignac number, because none of the positive numbers 2^k-66736703400067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66736703399990 and 66736703400017.

It is not an unprimeable number, because it can be changed into a prime (66736703400061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7433355213 + ... + 7433364190.

It is an arithmetic number, because the mean of its divisors is an integer number (11291273387338).

Almost surely, 2^{66736703400067} is an apocalyptic number.

66736703400067 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

66736703400067 is a deficient number, since it is larger than the sum of its proper divisors (1010936923961).

66736703400067 is an equidigital number, since it uses as much as digits as its factorization.

66736703400067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14866719537 (or 14866719470 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 55.

The spelling of 66736703400067 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred three million, four hundred thousand, sixty-seven".