64011633516 has 36 divisors (see below), whose sum is σ = 164023728232. Its totient is φ = 21044919744.

The previous prime is 64011633509. The next prime is 64011633559. The reversal of 64011633516 is 61533611046.

64011633516 is a `hidden beast` number, since 6 + 4 + 0 + 1 + 1 + 633 + 5 + 16 = 666.

64011633516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12176146 + ... + 12181401.

Almost surely, 2^64011633516 is an apocalyptic number.

It is an amenable number.

64011633516 is an abundant number, since it is smaller than the sum of its proper divisors (100012094716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64011633516 is a wasteful number, since it uses less digits than its factorization.

64011633516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24357630 (or 24357625 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 64011633516 in words is "sixty-four billion, eleven million, six hundred thirty-three thousand, five hundred sixteen".