66465741 has 4 divisors (see below), whose sum is σ = 88620992. Its totient is φ = 44310492.

The previous prime is 66465739. The next prime is 66465757. The reversal of 66465741 is 14756466.

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 not a de Polignac number, because 66465741 - 2¹ = 66465739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66465741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66465701) 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, 11077621 + ... + 11077626.

It is an arithmetic number, because the mean of its divisors is an integer number (22155248).

Almost surely, 2^66465741 is an apocalyptic number.

It is an amenable number.

66465741 is a deficient number, since it is larger than the sum of its proper divisors (22155251).

66465741 is a wasteful number, since it uses less digits than its factorization.

66465741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22155250.

The product of its digits is 120960, while the sum is 39.

The square root of 66465741 is about 8152.6523904800. The cubic root of 66465741 is about 405.0723662792.

The spelling of 66465741 in words is "sixty-six million, four hundred sixty-five thousand, seven hundred forty-one".