11101239478480 has 80 divisors (see below), whose sum is σ = 25837007040000. Its totient is φ = 4435916567040.

The previous prime is 11101239478477. The next prime is 11101239478487. The reversal of 11101239478480 is 8487493210111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×11101239478480² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101239478487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982491871 + ... + 982503169.

It is an arithmetic number, because the mean of its divisors is an integer number (322962588000).

Almost surely, 2^{11101239478480} is an apocalyptic number.

11101239478480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101239478480 is an abundant number, since it is smaller than the sum of its proper divisors (14735767561520).

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

11101239478480 is a wasteful number, since it uses less digits than its factorization.

11101239478480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22892 (or 22886 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 11101239478480 in words is "eleven trillion, one hundred one billion, two hundred thirty-nine million, four hundred seventy-eight thousand, four hundred eighty".