10643677240 has 64 divisors (see below), whose sum is σ = 27441192960. Its totient is φ = 3639696000.

The previous prime is 10643677193. The next prime is 10643677301. The reversal of 10643677240 is 4277634601.

It is a super-2 number, since 2×10643677240² (a number of 21 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 = 10643677193 and 10643677202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57615 + ... + 156865.

It is an arithmetic number, because the mean of its divisors is an integer number (428768640).

Almost surely, 2^10643677240 is an apocalyptic number.

10643677240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10643677240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13720596480).

10643677240 is an abundant number, since it is smaller than the sum of its proper divisors (16797515720).

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

10643677240 is a wasteful number, since it uses less digits than its factorization.

10643677240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99652 (or 99648 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 10643677240 in words is "ten billion, six hundred forty-three million, six hundred seventy-seven thousand, two hundred forty".