11401543272576 has 64 divisors (see below), whose sum is σ = 30372627336480. Its totient is φ = 3789561888768.

The previous prime is 11401543272557. The next prime is 11401543272607. The reversal of 11401543272576 is 67527234510411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42649921 + ... + 42916416.

Almost surely, 2^{11401543272576} is an apocalyptic number.

11401543272576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11401543272576 is an abundant number, since it is smaller than the sum of its proper divisors (18971084063904).

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

11401543272576 is an equidigital number, since it uses as much as digits as its factorization.

11401543272576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85566701 (or 85566689 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

Adding to 11401543272576 its reverse (67527234510411), we get a palindrome (78928777782987).

The spelling of 11401543272576 in words is "eleven trillion, four hundred one billion, five hundred forty-three million, two hundred seventy-two thousand, five hundred seventy-six".