66425240701 has 8 divisors (see below), whose sum is σ = 67660062560. Its totient is φ = 65197577808.

The previous prime is 66425240699. The next prime is 66425240723. The reversal of 66425240701 is 10704252466.

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 66425240701 - 2¹ = 66425240699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66425247701) 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, 1771011 + ... + 1808128.

It is an arithmetic number, because the mean of its divisors is an integer number (8457507820).

Almost surely, 2^66425240701 is an apocalyptic number.

It is an amenable number.

66425240701 is a deficient number, since it is larger than the sum of its proper divisors (1234821859).

66425240701 is a wasteful number, since it uses less digits than its factorization.

66425240701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579483.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 66425240701 in words is "sixty-six billion, four hundred twenty-five million, two hundred forty thousand, seven hundred one".