21160160625651 has 16 divisors (see below), whose sum is σ = 28352894075520. Its totient is φ = 14037263444160.

The previous prime is 21160160625647. The next prime is 21160160625677. The reversal of 21160160625651 is 15652606106112.

It is not a de Polignac number, because 21160160625651 - 2² = 21160160625647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21160160625451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19852866 + ... + 20891543.

It is an arithmetic number, because the mean of its divisors is an integer number (1772055879720).

Almost surely, 2^{21160160625651} is an apocalyptic number.

21160160625651 is a deficient number, since it is larger than the sum of its proper divisors (7192733449869).

21160160625651 is a wasteful number, since it uses less digits than its factorization.

21160160625651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40745266.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 21160160625651 in words is "twenty-one trillion, one hundred sixty billion, one hundred sixty million, six hundred twenty-five thousand, six hundred fifty-one".