15532020112001 has 16 divisors (see below), whose sum is σ = 15886618675200. Its totient is φ = 15181470437328.

The previous prime is 15532020111997. The next prime is 15532020112019. The reversal of 15532020112001 is 10021102023551.

It is a cyclic number.

It is not a de Polignac number, because 15532020112001 - 2² = 15532020111997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15532020112051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24249470 + ... + 24881736.

It is an arithmetic number, because the mean of its divisors is an integer number (992913667200).

Almost surely, 2^{15532020112001} is an apocalyptic number.

It is an amenable number.

15532020112001 is a deficient number, since it is larger than the sum of its proper divisors (354598563199).

15532020112001 is a wasteful number, since it uses less digits than its factorization.

15532020112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635468.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 15532020112001 its reverse (10021102023551), we get a palindrome (25553122135552).

The spelling of 15532020112001 in words is "fifteen trillion, five hundred thirty-two billion, twenty million, one hundred twelve thousand, one".