10645244362640 has 40 divisors (see below), whose sum is σ = 25548586476288. Its totient is φ = 4120739752320.

The previous prime is 10645244362507. The next prime is 10645244362783. The reversal of 10645244362640 is 4626344254601.

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

It is a super-2 number, since 2×10645244362640² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2146216142 + ... + 2146221101.

Almost surely, 2^{10645244362640} is an apocalyptic number.

10645244362640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10645244362640 is an abundant number, since it is smaller than the sum of its proper divisors (14903342113648).

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

10645244362640 is a wasteful number, since it uses less digits than its factorization.

10645244362640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292437287 (or 4292437281 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 10645244362640 in words is "ten trillion, six hundred forty-five billion, two hundred forty-four million, three hundred sixty-two thousand, six hundred forty".