10644444250240 has 64 divisors (see below), whose sum is σ = 25466405981760. Its totient is φ = 4254509693952.

The previous prime is 10644444250211. The next prime is 10644444250303. The reversal of 10644444250240 is 4205244444601.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×10644444250240² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 10644444250193 and 10644444250202.

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, 5548254 + ... + 7216093.

It is an arithmetic number, because the mean of its divisors is an integer number (397912593465).

Almost surely, 2^{10644444250240} is an apocalyptic number.

10644444250240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10644444250240 is an abundant number, since it is smaller than the sum of its proper divisors (14821961731520).

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

10644444250240 is a wasteful number, since it uses less digits than its factorization.

10644444250240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12765669 (or 12765657 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 40.

Adding to 10644444250240 its reverse (4205244444601), we get a palindrome (14849688694841).

The spelling of 10644444250240 in words is "ten trillion, six hundred forty-four billion, four hundred forty-four million, two hundred fifty thousand, two hundred forty".