64500401043 has 24 divisors (see below), whose sum is σ = 100345918400. Its totient is φ = 39687822720.

The previous prime is 64500400969. The next prime is 64500401101. The reversal of 64500401043 is 34010400546.

64500401043 is a `hidden beast` number, since 645 + 0 + 0 + 4 + 0 + 10 + 4 + 3 = 666.

It is not a de Polignac number, because 64500401043 - 2²² = 64496206739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64500400998 and 64500401016.

It is not an unprimeable number, because it can be changed into a prime (64500401143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1126983 + ... + 1182831.

Almost surely, 2^64500401043 is an apocalyptic number.

64500401043 is a deficient number, since it is larger than the sum of its proper divisors (35845517357).

64500401043 is a wasteful number, since it uses less digits than its factorization.

64500401043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65739 (or 65736 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 64500401043 its reverse (34010400546), we get a palindrome (98510801589).

The spelling of 64500401043 in words is "sixty-four billion, five hundred million, four hundred one thousand, forty-three".