66425971741 has 8 divisors (see below), whose sum is σ = 67104183744. Its totient is φ = 65748400320.

The previous prime is 66425971681. The next prime is 66425971783. The reversal of 66425971741 is 14717952466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66425971741 - 2⁹ = 66425971229 is a prime.

It is a super-2 number, since 2×66425971741² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66425972741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49701 + ... + 367861.

It is an arithmetic number, because the mean of its divisors is an integer number (8388022968).

Almost surely, 2^66425971741 is an apocalyptic number.

It is an amenable number.

66425971741 is a deficient number, since it is larger than the sum of its proper divisors (678212003).

66425971741 is a wasteful number, since it uses less digits than its factorization.

66425971741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320291.

The product of its digits is 2540160, while the sum is 52.

The spelling of 66425971741 in words is "sixty-six billion, four hundred twenty-five million, nine hundred seventy-one thousand, seven hundred forty-one".