66702446237 has 24 divisors (see below), whose sum is σ = 80393420160. Its totient is φ = 55115944800.

The previous prime is 66702446231. The next prime is 66702446323. The reversal of 66702446237 is 73264420766.

It is not a de Polignac number, because 66702446237 - 2⁴ = 66702446221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66702446191 and 66702446200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66702446231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 883112 + ... + 955662.

It is an arithmetic number, because the mean of its divisors is an integer number (3349725840).

Almost surely, 2^66702446237 is an apocalyptic number.

It is an amenable number.

66702446237 is a deficient number, since it is larger than the sum of its proper divisors (13690973923).

66702446237 is a wasteful number, since it uses less digits than its factorization.

66702446237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73241 (or 73234 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 47.

The spelling of 66702446237 in words is "sixty-six billion, seven hundred two million, four hundred forty-six thousand, two hundred thirty-seven".