200644064240 has 40 divisors (see below), whose sum is σ = 469103613840. Its totient is φ = 79809253376.

The previous prime is 200644064219. The next prime is 200644064261. The reversal of 200644064240 is 42460446002.

It is an interprime number because it is at equal distance from previous prime (200644064219) and next prime (200644064261).

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 200644064197 and 200644064206.

It is a congruent number.

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, 6991409 + ... + 7020048.

It is an arithmetic number, because the mean of its divisors is an integer number (11727590346).

Almost surely, 2^200644064240 is an apocalyptic number.

200644064240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200644064240 is an abundant number, since it is smaller than the sum of its proper divisors (268459549600).

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

200644064240 is a wasteful number, since it uses less digits than its factorization.

200644064240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14011649 (or 14011643 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 200644064240 in words is "two hundred billion, six hundred forty-four million, sixty-four thousand, two hundred forty".