11032720664 has 16 divisors (see below), whose sum is σ = 23641544400. Its totient is φ = 4728308832.

The previous prime is 11032720651. The next prime is 11032720667. The reversal of 11032720664 is 46602723011.

It is a self number, because there is not a number n which added to its sum of digits gives 11032720664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11032720667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98506379 + ... + 98506490.

It is an arithmetic number, because the mean of its divisors is an integer number (1477596525).

Almost surely, 2^11032720664 is an apocalyptic number.

11032720664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11032720664 is an abundant number, since it is smaller than the sum of its proper divisors (12608823736).

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

11032720664 is a wasteful number, since it uses less digits than its factorization.

11032720664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197012882 (or 197012878 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 11032720664 in words is "eleven billion, thirty-two million, seven hundred twenty thousand, six hundred sixty-four".