11372557671 has 12 divisors (see below), whose sum is σ = 16499396472. Its totient is φ = 7548304176.

The previous prime is 11372557663. The next prime is 11372557687. The reversal of 11372557671 is 17675527311.

11372557671 is a `hidden beast` number, since 1 + 1 + 3 + 7 + 2 + 5 + 576 + 71 = 666.

It is not a de Polignac number, because 11372557671 - 2³ = 11372557663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11372557171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2781256 + ... + 2785341.

It is an arithmetic number, because the mean of its divisors is an integer number (1374949706).

Almost surely, 2^11372557671 is an apocalyptic number.

11372557671 is a deficient number, since it is larger than the sum of its proper divisors (5126838801).

11372557671 is a wasteful number, since it uses less digits than its factorization.

11372557671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566830 (or 5566827 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

It can be divided in two parts, 113725 and 57671, that added together give a square (171396 = 414²).

The spelling of 11372557671 in words is "eleven billion, three hundred seventy-two million, five hundred fifty-seven thousand, six hundred seventy-one".