15655135001 has 24 divisors (see below), whose sum is σ = 18037596192. Its totient is φ = 13561732800.

The previous prime is 15655134973. The next prime is 15655135043. The reversal of 15655135001 is 10053155651.

It is not a de Polignac number, because 15655135001 - 2¹⁴ = 15655118617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15655135051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176630 + ... + 250016.

It is an arithmetic number, because the mean of its divisors is an integer number (751566508).

Almost surely, 2^15655135001 is an apocalyptic number.

15655135001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15655135001 is a deficient number, since it is larger than the sum of its proper divisors (2382461191).

15655135001 is a wasteful number, since it uses less digits than its factorization.

15655135001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73493 (or 73482 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 32.

The spelling of 15655135001 in words is "fifteen billion, six hundred fifty-five million, one hundred thirty-five thousand, one".