11671412501 has 4 divisors (see below), whose sum is σ = 13338757152. Its totient is φ = 10004067852.

The previous prime is 11671412483. The next prime is 11671412591. The reversal of 11671412501 is 10521417611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11671412501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11671412591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833672315 + ... + 833672328.

It is an arithmetic number, because the mean of its divisors is an integer number (3334689288).

Almost surely, 2^11671412501 is an apocalyptic number.

It is an amenable number.

11671412501 is a deficient number, since it is larger than the sum of its proper divisors (1667344651).

11671412501 is an equidigital number, since it uses as much as digits as its factorization.

11671412501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667344650.

The product of its (nonzero) digits is 1680, while the sum is 29.

The spelling of 11671412501 in words is "eleven billion, six hundred seventy-one million, four hundred twelve thousand, five hundred one".