11271566402 has 4 divisors (see below), whose sum is σ = 16907349606. Its totient is φ = 5635783200.

The previous prime is 11271566401. The next prime is 11271566417. The reversal of 11271566402 is 20466517211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9170169121 + 2101397281 = 95761^2 + 45841^2 .

It is not an unprimeable number, because it can be changed into a prime (11271566401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2817891599 + ... + 2817891602.

Almost surely, 2^11271566402 is an apocalyptic number.

11271566402 is a deficient number, since it is larger than the sum of its proper divisors (5635783204).

11271566402 is an equidigital number, since it uses as much as digits as its factorization.

11271566402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635783203.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 11271566402 in words is "eleven billion, two hundred seventy-one million, five hundred sixty-six thousand, four hundred two".