64126510421006 has 16 divisors (see below), whose sum is σ = 105578058434688. Its totient is φ = 28969589201400.

The previous prime is 64126510420961. The next prime is 64126510421023. The reversal of 64126510421006 is 60012401562146.

It is a happy number.

It is a super-2 number, since 2×64126510421006² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8941227650 + ... + 8941234821.

It is an arithmetic number, because the mean of its divisors is an integer number (6598628652168).

Almost surely, 2^{64126510421006} is an apocalyptic number.

64126510421006 is a deficient number, since it is larger than the sum of its proper divisors (41451548013682).

64126510421006 is a wasteful number, since it uses less digits than its factorization.

64126510421006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17882462647.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 64126510421006 in words is "sixty-four trillion, one hundred twenty-six billion, five hundred ten million, four hundred twenty-one thousand, six".