11653373538537 has 8 divisors (see below), whose sum is σ = 16213389271104. Its totient is φ = 7431136749168.

The previous prime is 11653373538533. The next prime is 11653373538551. The reversal of 11653373538537 is 73583537335611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11653373538537 - 2² = 11653373538533 is a prime.

It is a super-2 number, since 2×11653373538537² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11653373538533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84444735718 + ... + 84444735855.

It is an arithmetic number, because the mean of its divisors is an integer number (2026673658888).

Almost surely, 2^{11653373538537} is an apocalyptic number.

It is an amenable number.

11653373538537 is a deficient number, since it is larger than the sum of its proper divisors (4560015732567).

11653373538537 is a wasteful number, since it uses less digits than its factorization.

11653373538537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168889471599.

The product of its digits is 71442000, while the sum is 60.

The spelling of 11653373538537 in words is "eleven trillion, six hundred fifty-three billion, three hundred seventy-three million, five hundred thirty-eight thousand, five hundred thirty-seven".