16242197625 has 32 divisors (see below), whose sum is σ = 30030024960. Its totient is φ = 8662503600.

The previous prime is 16242197599. The next prime is 16242197639. The reversal of 16242197625 is 52679124261.

16242197625 is a `hidden beast` number, since 1 + 6 + 2 + 4 + 2 + 19 + 7 + 625 = 666.

It is not a de Polignac number, because 16242197625 - 2⁵ = 16242197593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2402877 + ... + 2409626.

It is an arithmetic number, because the mean of its divisors is an integer number (938438280).

Almost surely, 2^16242197625 is an apocalyptic number.

16242197625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16242197625 is a deficient number, since it is larger than the sum of its proper divisors (13787827335).

16242197625 is an equidigital number, since it uses as much as digits as its factorization.

16242197625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812527 (or 4812511 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 16242197625 in words is "sixteen billion, two hundred forty-two million, one hundred ninety-seven thousand, six hundred twenty-five".