11401272663 has 8 divisors (see below), whose sum is σ = 16583669376. Its totient is φ = 6909862200.

The previous prime is 11401272637. The next prime is 11401272691. The reversal of 11401272663 is 36627210411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11401272663 - 2¹⁸ = 11401010519 is a prime.

It is a super-2 number, since 2×11401272663² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 345493111 = 11401272663 / (1 + 1 + 4 + 0 + 1 + 2 + 7 + 2 + 6 + 6 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401272763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172746523 + ... + 172746588.

It is an arithmetic number, because the mean of its divisors is an integer number (2072958672).

Almost surely, 2^11401272663 is an apocalyptic number.

11401272663 is a deficient number, since it is larger than the sum of its proper divisors (5182396713).

11401272663 is a wasteful number, since it uses less digits than its factorization.

11401272663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345493125.

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 11401272663 in words is "eleven billion, four hundred one million, two hundred seventy-two thousand, six hundred sixty-three".