10997945616 has 160 divisors (see below), whose sum is σ = 34410297600. Its totient is φ = 2959810560.

The previous prime is 10997945603. The next prime is 10997945633. The reversal of 10997945616 is 61654979901.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385740 + ... + 413268.

It is an arithmetic number, because the mean of its divisors is an integer number (215064360).

Almost surely, 2^10997945616 is an apocalyptic number.

10997945616 is a gapful number since it is divisible by the number (16) 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 10997945616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17205148800).

10997945616 is an abundant number, since it is smaller than the sum of its proper divisors (23412351984).

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

10997945616 is a wasteful number, since it uses less digits than its factorization.

10997945616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27617 (or 27611 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 57.

The spelling of 10997945616 in words is "ten billion, nine hundred ninety-seven million, nine hundred forty-five thousand, six hundred sixteen".