10550317640 has 64 divisors (see below), whose sum is σ = 25813954800. Its totient is φ = 3864526848.

The previous prime is 10550317607. The next prime is 10550317667. The reversal of 10550317640 is 4671305501.

It can be written as a sum of positive squares in 8 ways, for example, as 6683716516 + 3866601124 = 81754^2 + 62182^2 .

It is a super-2 number, since 2×10550317640² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10550317597 and 10550317606.

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, 184505 + ... + 234824.

Almost surely, 2^10550317640 is an apocalyptic number.

10550317640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10550317640 is an abundant number, since it is smaller than the sum of its proper divisors (15263637160).

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

10550317640 is a wasteful number, since it uses less digits than its factorization.

10550317640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419394 (or 419390 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 10550317640 in words is "ten billion, five hundred fifty million, three hundred seventeen thousand, six hundred forty".