64662406022441 has 4 divisors (see below), whose sum is σ = 64838597864832. Its totient is φ = 64486214180052.

The previous prime is 64662406022413. The next prime is 64662406022453. The reversal of 64662406022441 is 14422060426646.

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 64662406022441 - 2¹⁴ = 64662406006057 is a prime.

It is a super-2 number, since 2×64662406022441² (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 (64662406022741) 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, 88095920645 + ... + 88095921378.

It is an arithmetic number, because the mean of its divisors is an integer number (16209649466208).

Almost surely, 2^{64662406022441} is an apocalyptic number.

It is an amenable number.

64662406022441 is a deficient number, since it is larger than the sum of its proper divisors (176191842391).

64662406022441 is a wasteful number, since it uses less digits than its factorization.

64662406022441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176191842390.

The product of its (nonzero) digits is 2654208, while the sum is 47.

The spelling of 64662406022441 in words is "sixty-four trillion, six hundred sixty-two billion, four hundred six million, twenty-two thousand, four hundred forty-one".