128037641553 has 12 divisors (see below), whose sum is σ = 189244266640. Its totient is φ = 83373347736.

The previous prime is 128037641549. The next prime is 128037641653. The reversal of 128037641553 is 355146730821.

It is a happy number.

128037641553 is a `hidden beast` number, since 1 + 2 + 8 + 0 + 37 + 64 + 1 + 553 = 666.

It is not a de Polignac number, because 128037641553 - 2² = 128037641549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128037641499 and 128037641508.

It is not an unprimeable number, because it can be changed into a prime (128037641653) 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, 165422923 + ... + 165423696.

Almost surely, 2^128037641553 is an apocalyptic number.

It is an amenable number.

128037641553 is a deficient number, since it is larger than the sum of its proper divisors (61206625087).

128037641553 is a wasteful number, since it uses less digits than its factorization.

128037641553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330846668 (or 330846665 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 128037641553 in words is "one hundred twenty-eight billion, thirty-seven million, six hundred forty-one thousand, five hundred fifty-three".