10645518720 has 128 divisors (see below), whose sum is σ = 35408067840. Its totient is φ = 2715367424.

The previous prime is 10645518691. The next prime is 10645518727. The reversal of 10645518720 is 2781554601.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×10645518720² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645518727) 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, 76374 + ... + 164693.

It is an arithmetic number, because the mean of its divisors is an integer number (276625530).

Almost surely, 2^10645518720 is an apocalyptic number.

10645518720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10645518720 is an abundant number, since it is smaller than the sum of its proper divisors (24762549120).

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

10645518720 is a wasteful number, since it uses less digits than its factorization.

10645518720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241112 (or 241100 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 10645518720 in words is "ten billion, six hundred forty-five million, five hundred eighteen thousand, seven hundred twenty".