66737406701 has 16 divisors (see below), whose sum is σ = 78914469888. Its totient is φ = 55229698800.

The previous prime is 66737406683. The next prime is 66737406713. The reversal of 66737406701 is 10760473766.

It is a cyclic number.

It is not a de Polignac number, because 66737406701 - 2¹⁸ = 66737144557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66737406101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263255 + ... + 450308.

It is an arithmetic number, because the mean of its divisors is an integer number (4932154368).

Almost surely, 2^66737406701 is an apocalyptic number.

It is an amenable number.

66737406701 is a deficient number, since it is larger than the sum of its proper divisors (12177063187).

66737406701 is a wasteful number, since it uses less digits than its factorization.

66737406701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714032.

The product of its (nonzero) digits is 889056, while the sum is 47.

The spelling of 66737406701 in words is "sixty-six billion, seven hundred thirty-seven million, four hundred six thousand, seven hundred one".