11641572054438 has 16 divisors (see below), whose sum is σ = 23310895184640. Its totient is φ = 3875898838856.

The previous prime is 11641572054403. The next prime is 11641572054449. The reversal of 11641572054438 is 83445027514611.

It is a happy number.

It is a congruent number.

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, 1156289370 + ... + 1156299437.

It is an arithmetic number, because the mean of its divisors is an integer number (1456930949040).

Almost surely, 2^{11641572054438} is an apocalyptic number.

11641572054438 is an abundant number, since it is smaller than the sum of its proper divisors (11669323130202).

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

11641572054438 is a wasteful number, since it uses less digits than its factorization.

11641572054438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312589651.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 11641572054438 in words is "eleven trillion, six hundred forty-one billion, five hundred seventy-two million, fifty-four thousand, four hundred thirty-eight".