10998244640 has 48 divisors (see below), whose sum is σ = 26092160640. Its totient is φ = 4380875520.

The previous prime is 10998244619. The next prime is 10998244651. The reversal of 10998244640 is 4644289901.

It is a super-2 number, since 2×10998244640² (a number of 21 digits) contains 22 as substring.

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, 105566 + ... + 182045.

It is an arithmetic number, because the mean of its divisors is an integer number (543586680).

Almost surely, 2^10998244640 is an apocalyptic number.

10998244640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10998244640 is an abundant number, since it is smaller than the sum of its proper divisors (15093916000).

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

10998244640 is a wasteful number, since it uses less digits than its factorization.

10998244640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287865 (or 287857 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 10998244640 in words is "ten billion, nine hundred ninety-eight million, two hundred forty-four thousand, six hundred forty".