643004643153 has 16 divisors (see below), whose sum is σ = 908914443776. Its totient is φ = 403629765120.

The previous prime is 643004643109. The next prime is 643004643161. The reversal of 643004643153 is 351346400346.

It is not a de Polignac number, because 643004643153 - 2¹⁰ = 643004642129 is a prime.

It is a super-2 number, since 2×643004643153² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (643004643173) 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, 93429376 + ... + 93436257.

It is an arithmetic number, because the mean of its divisors is an integer number (56807152736).

Almost surely, 2^643004643153 is an apocalyptic number.

It is an amenable number.

643004643153 is a deficient number, since it is larger than the sum of its proper divisors (265909800623).

643004643153 is a wasteful number, since it uses less digits than its factorization.

643004643153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186865704.

The product of its (nonzero) digits is 311040, while the sum is 39.

The spelling of 643004643153 in words is "six hundred forty-three billion, four million, six hundred forty-three thousand, one hundred fifty-three".