64516676733 has 24 divisors (see below), whose sum is σ = 95405605152. Its totient is φ = 41989879008.

The previous prime is 64516676729. The next prime is 64516676767. The reversal of 64516676733 is 33767661546.

It is a happy number.

64516676733 is a `hidden beast` number, since 6 + 4 + 516 + 67 + 67 + 3 + 3 = 666.

It is not a de Polignac number, because 64516676733 - 2² = 64516676729 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64516676733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64516676933) 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, 753910 + ... + 835112.

It is an arithmetic number, because the mean of its divisors is an integer number (3975233548).

Almost surely, 2^64516676733 is an apocalyptic number.

It is an amenable number.

64516676733 is a deficient number, since it is larger than the sum of its proper divisors (30888928419).

64516676733 is a wasteful number, since it uses less digits than its factorization.

64516676733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83305 (or 83302 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 54.

The spelling of 64516676733 in words is "sixty-four billion, five hundred sixteen million, six hundred seventy-six thousand, seven hundred thirty-three".