66460200461 has 4 divisors (see below), whose sum is σ = 66573421152. Its totient is φ = 66346979772.

The previous prime is 66460200449. The next prime is 66460200467. The reversal of 66460200461 is 16400206466.

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 66460200461 - 2⁶ = 66460200397 is a prime.

It is a super-2 number, since 2×66460200461² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66460200467) 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, 56609465 + ... + 56610638.

It is an arithmetic number, because the mean of its divisors is an integer number (16643355288).

Almost surely, 2^66460200461 is an apocalyptic number.

It is an amenable number.

66460200461 is a deficient number, since it is larger than the sum of its proper divisors (113220691).

66460200461 is a wasteful number, since it uses less digits than its factorization.

66460200461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113220690.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 66460200461 in words is "sixty-six billion, four hundred sixty million, two hundred thousand, four hundred sixty-one".