11435215680 has 336 divisors, whose sum is σ = 45099085824. Its totient is φ = 2605178880.

The previous prime is 11435215669. The next prime is 11435215691. The reversal of 11435215680 is 8651253411.

11435215680 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 521 + 56 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (11435215669) and next prime (11435215691).

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7720540 + ... + 7722020.

Almost surely, 2^11435215680 is an apocalyptic number.

11435215680 is a gapful number since it is divisible by the number (10) 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 11435215680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22549542912).

11435215680 is an abundant number, since it is smaller than the sum of its proper divisors (33663870144).

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

11435215680 is a wasteful number, since it uses less digits than its factorization.

11435215680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 11435215680 in words is "eleven billion, four hundred thirty-five million, two hundred fifteen thousand, six hundred eighty".