66737000340375 has 64 divisors (see below), whose sum is σ = 123771308843520. Its totient is φ = 31736232921600.

The previous prime is 66737000340371. The next prime is 66737000340377. The reversal of 66737000340375 is 57304300073766.

It is not a de Polignac number, because 66737000340375 - 2² = 66737000340371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66737000340371) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 275367009 + ... + 275609258.

It is an arithmetic number, because the mean of its divisors is an integer number (1933926700680).

Almost surely, 2^{66737000340375} is an apocalyptic number.

66737000340375 is a deficient number, since it is larger than the sum of its proper divisors (57034308503145).

66737000340375 is a wasteful number, since it uses less digits than its factorization.

66737000340375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550976321 (or 550976311 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 51.

The spelling of 66737000340375 in words is "sixty-six trillion, seven hundred thirty-seven billion, three hundred forty thousand, three hundred seventy-five".