66514312797041 has 4 divisors (see below), whose sum is σ = 66518936034672. Its totient is φ = 66509689559412.

The previous prime is 66514312797019. The next prime is 66514312797047. The reversal of 66514312797041 is 14079721341566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66514312797041 - 2⁶ = 66514312796977 is a prime.

It is a super-2 number, since 2×66514312797041² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66514312797047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311597235 + ... + 2311626008.

It is an arithmetic number, because the mean of its divisors is an integer number (16629734008668).

Almost surely, 2^{66514312797041} is an apocalyptic number.

It is an amenable number.

66514312797041 is a deficient number, since it is larger than the sum of its proper divisors (4623237631).

66514312797041 is a wasteful number, since it uses less digits than its factorization.

66514312797041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4623237630.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 66514312797041 in words is "sixty-six trillion, five hundred fourteen billion, three hundred twelve million, seven hundred ninety-seven thousand, forty-one".