66737333737340 has 48 divisors (see below), whose sum is σ = 162560192051712. Its totient is φ = 22539858555456.

The previous prime is 66737333737339. The next prime is 66737333737483. The reversal of 66737333737340 is 4373733373766.

It is a happy number.

It is a super-2 number, since 2×66737333737340² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3557417792 + ... + 3557436551.

It is an arithmetic number, because the mean of its divisors is an integer number (3386670667744).

Almost surely, 2^{66737333737340} is an apocalyptic number.

It is an amenable number.

66737333737340 is an abundant number, since it is smaller than the sum of its proper divisors (95822858314372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66737333737340 is a wasteful number, since it uses less digits than its factorization.

66737333737340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7114854426 (or 7114854424 counting only the distinct ones).

The product of its (nonzero) digits is 252047376, while the sum is 62.

The spelling of 66737333737340 in words is "sixty-six trillion, seven hundred thirty-seven billion, three hundred thirty-three million, seven hundred thirty-seven thousand, three hundred forty".