643010553216 has 48 divisors (see below), whose sum is σ = 1850329850460. Its totient is φ = 214336850688.

The previous prime is 643010553203. The next prime is 643010553331. The reversal of 643010553216 is 612355010346.

643010553216 is a `hidden beast` number, since 6 + 4 + 3 + 0 + 105 + 532 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 279083290 + ... + 279085593.

Almost surely, 2^643010553216 is an apocalyptic number.

It is an amenable number.

643010553216 is an abundant number, since it is smaller than the sum of its proper divisors (1207319297244).

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

643010553216 is a wasteful number, since it uses less digits than its factorization.

643010553216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558168903 (or 558168888 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 643010553216 in words is "six hundred forty-three billion, ten million, five hundred fifty-three thousand, two hundred sixteen".