2161614123625 has 32 divisors (see below), whose sum is σ = 2944760158080. Its totient is φ = 1571110360000.

The previous prime is 2161614123623. The next prime is 2161614123673. The reversal of 2161614123625 is 5263214161612.

It is not a de Polignac number, because 2161614123625 - 2¹ = 2161614123623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2161614123623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1740615 + ... + 2711635.

It is an arithmetic number, because the mean of its divisors is an integer number (92023754940).

Almost surely, 2^{2161614123625} is an apocalyptic number.

2161614123625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2161614123625 is a deficient number, since it is larger than the sum of its proper divisors (783146034455).

2161614123625 is a wasteful number, since it uses less digits than its factorization.

2161614123625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972666 (or 972656 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The spelling of 2161614123625 in words is "two trillion, one hundred sixty-one billion, six hundred fourteen million, one hundred twenty-three thousand, six hundred twenty-five".