11537532145647 has 12 divisors (see below), whose sum is σ = 16681363996960. Its totient is φ = 7684285118688.

The previous prime is 11537532145627. The next prime is 11537532145673. The reversal of 11537532145647 is 74654123573511.

11537532145647 is a `hidden beast` number, since 1 + 1 + 5 + 3 + 7 + 53 + 21 + 4 + 564 + 7 = 666.

It is not a de Polignac number, because 11537532145647 - 2⁷ = 11537532145519 is a prime.

It is a super-2 number, since 2×11537532145647² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11537532145593 and 11537532145602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11537532145627) 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, 616904998 + ... + 616923699.

Almost surely, 2^{11537532145647} is an apocalyptic number.

11537532145647 is a deficient number, since it is larger than the sum of its proper divisors (5143831851313).

11537532145647 is a wasteful number, since it uses less digits than its factorization.

11537532145647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233829742 (or 1233829739 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 54.

The spelling of 11537532145647 in words is "eleven trillion, five hundred thirty-seven billion, five hundred thirty-two million, one hundred forty-five thousand, six hundred forty-seven".