10911037640 has 32 divisors (see below), whose sum is σ = 24577906680. Its totient is φ = 4359424512.

The previous prime is 10911037591. The next prime is 10911037663. The reversal of 10911037640 is 4673011901.

It can be written as a sum of positive squares in 4 ways, for example, as 10861391524 + 49646116 = 104218^2 + 7046^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10911037597 and 10911037606.

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, 120437 + ... + 190596.

Almost surely, 2^10911037640 is an apocalyptic number.

10911037640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10911037640 is an abundant number, since it is smaller than the sum of its proper divisors (13666869040).

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

10911037640 is a wasteful number, since it uses less digits than its factorization.

10911037640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311921 (or 311917 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 10911037640 in words is "ten billion, nine hundred eleven million, thirty-seven thousand, six hundred forty".