643100224002 has 16 divisors (see below), whose sum is σ = 1305397470432. Its totient is φ = 211167237600.

The previous prime is 643100223991. The next prime is 643100224097. The reversal of 643100224002 is 200422001346.

It is a super-2 number, since 2×643100224002² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799875499 + ... + 799876302.

It is an arithmetic number, because the mean of its divisors is an integer number (81587341902).

Almost surely, 2^643100224002 is an apocalyptic number.

643100224002 is an abundant number, since it is smaller than the sum of its proper divisors (662297246430).

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

643100224002 is a wasteful number, since it uses less digits than its factorization.

643100224002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599751873.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 643100224002 its reverse (200422001346), we get a palindrome (843522225348).

The spelling of 643100224002 in words is "six hundred forty-three billion, one hundred million, two hundred twenty-four thousand, two".