64005006403 has 16 divisors (see below), whose sum is σ = 71726941440. Its totient is φ = 56729431584.

The previous prime is 64005006371. The next prime is 64005006407. The reversal of 64005006403 is 30460050046.

It is a cyclic number.

It is not a de Polignac number, because 64005006403 - 2⁵ = 64005006371 is a prime.

It is a super-3 number, since 3×64005006403³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64005006407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 937351 + ... + 1003312.

It is an arithmetic number, because the mean of its divisors is an integer number (4482933840).

Almost surely, 2^64005006403 is an apocalyptic number.

64005006403 is a deficient number, since it is larger than the sum of its proper divisors (7721935037).

64005006403 is a wasteful number, since it uses less digits than its factorization.

64005006403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940778.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 64005006403 its reverse (30460050046), we get a palindrome (94465056449).

The spelling of 64005006403 in words is "sixty-four billion, five million, six thousand, four hundred three".