21160146262453 has 4 divisors (see below), whose sum is σ = 23083795922688. Its totient is φ = 19236496602220.

The previous prime is 21160146262403. The next prime is 21160146262481. The reversal of 21160146262453 is 35426264106112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21160146262453 - 2¹⁷ = 21160146131381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21160146262403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961824830101 + ... + 961824830122.

It is an arithmetic number, because the mean of its divisors is an integer number (5770948980672).

Almost surely, 2^{21160146262453} is an apocalyptic number.

It is an amenable number.

21160146262453 is a deficient number, since it is larger than the sum of its proper divisors (1923649660235).

21160146262453 is a wasteful number, since it uses less digits than its factorization.

21160146262453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923649660234.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 21160146262453 in words is "twenty-one trillion, one hundred sixty billion, one hundred forty-six million, two hundred sixty-two thousand, four hundred fifty-three".