66737040037 has 2 divisors, whose sum is σ = 66737040038. Its totient is φ = 66737040036.

The previous prime is 66737039977. The next prime is 66737040049. The reversal of 66737040037 is 73004073766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62435516641 + 4301523396 = 249871^2 + 65586^2 .

It is a cyclic number.

It is not a de Polignac number, because 66737040037 - 2³¹ = 64589556389 is a prime.

It is a super-2 number, since 2×66737040037² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66737039975 and 66737040002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66737041037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33368520018 + 33368520019.

It is an arithmetic number, because the mean of its divisors is an integer number (33368520019).

Almost surely, 2^66737040037 is an apocalyptic number.

It is an amenable number.

66737040037 is a deficient number, since it is larger than the sum of its proper divisors (1).

66737040037 is an equidigital number, since it uses as much as digits as its factorization.

66737040037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 43.

The spelling of 66737040037 in words is "sixty-six billion, seven hundred thirty-seven million, forty thousand, thirty-seven".