21116152453 has 8 divisors (see below), whose sum is σ = 23039762976. Its totient is φ = 19193202000.

The previous prime is 21116152441. The next prime is 21116152457. The reversal of 21116152453 is 35425161112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21116152453 - 2⁹ = 21116151941 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 (21116152457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96898 + ... + 227203.

It is an arithmetic number, because the mean of its divisors is an integer number (2879970372).

Almost surely, 2^21116152453 is an apocalyptic number.

It is an amenable number.

21116152453 is a deficient number, since it is larger than the sum of its proper divisors (1923610523).

21116152453 is a wasteful number, since it uses less digits than its factorization.

21116152453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330035.

The product of its digits is 7200, while the sum is 31.

The spelling of 21116152453 in words is "twenty-one billion, one hundred sixteen million, one hundred fifty-two thousand, four hundred fifty-three".