66614107057700 has 18 divisors (see below), whose sum is σ = 144552612315426. Its totient is φ = 26645642823040.

The previous prime is 66614107057691. The next prime is 66614107057709. The reversal of 66614107057700 is 775070141666.

It is an interprime number because it is at equal distance from previous prime (66614107057691) and next prime (66614107057709).

It can be written as a sum of positive squares in 3 ways, for example, as 4630733863396 + 61983373194304 = 2151914^2 + 7872952^2 .

It is a super-2 number, since 2×66614107057700² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (66614107057709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333070535189 + ... + 333070535388.

Almost surely, 2^{66614107057700} is an apocalyptic number.

It is an amenable number.

66614107057700 is an abundant number, since it is smaller than the sum of its proper divisors (77938505257726).

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

66614107057700 is a wasteful number, since it uses less digits than its factorization.

66614107057700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666141070591 (or 666141070584 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 50.

The spelling of 66614107057700 in words is "sixty-six trillion, six hundred fourteen billion, one hundred seven million, fifty-seven thousand, seven hundred".