11465185720 has 16 divisors (see below), whose sum is σ = 25796667960. Its totient is φ = 4586074272.

The previous prime is 11465185709. The next prime is 11465185723. The reversal of 11465185720 is 2758156411.

11465185720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 286629643 = 11465185720 / (1 + 1 + 4 + 6 + 5 + 1 + 8 + 5 + 7 + 2 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11465185723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143314782 + ... + 143314861.

Almost surely, 2^11465185720 is an apocalyptic number.

11465185720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11465185720 is an abundant number, since it is smaller than the sum of its proper divisors (14331482240).

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

11465185720 is a wasteful number, since it uses less digits than its factorization.

11465185720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286629654 (or 286629650 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 11465185720 in words is "eleven billion, four hundred sixty-five million, one hundred eighty-five thousand, seven hundred twenty".