111646552641225 has 96 divisors (see below), whose sum is σ = 212020206338304. Its totient is φ = 50781959577600.

The previous prime is 111646552641209. The next prime is 111646552641227. The reversal of 111646552641225 is 522146255646111.

It is not a de Polignac number, because 111646552641225 - 2⁴ = 111646552641209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111646552641227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 166149019 + ... + 166819631.

It is an arithmetic number, because the mean of its divisors is an integer number (2208543816024).

Almost surely, 2^{111646552641225} is an apocalyptic number.

111646552641225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111646552641225 is a deficient number, since it is larger than the sum of its proper divisors (100373653697079).

111646552641225 is a wasteful number, since it uses less digits than its factorization.

111646552641225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672227 (or 672222 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 51.

The spelling of 111646552641225 in words is "one hundred eleven trillion, six hundred forty-six billion, five hundred fifty-two million, six hundred forty-one thousand, two hundred twenty-five".