127116601553 has 4 divisors (see below), whose sum is σ = 127148942448. Its totient is φ = 127084260660.

The previous prime is 127116601541. The next prime is 127116601561. The reversal of 127116601553 is 355106611721.

It is a happy number.

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 not a de Polignac number, because 127116601553 - 2⁴ = 127116601537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127116601453) 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, 16164551 + ... + 16172412.

It is an arithmetic number, because the mean of its divisors is an integer number (31787235612).

Almost surely, 2^127116601553 is an apocalyptic number.

It is an amenable number.

127116601553 is a deficient number, since it is larger than the sum of its proper divisors (32340895).

127116601553 is an equidigital number, since it uses as much as digits as its factorization.

127116601553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32340894.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 127116601553 in words is "one hundred twenty-seven billion, one hundred sixteen million, six hundred one thousand, five hundred fifty-three".