21150035153461 has 8 divisors (see below), whose sum is σ = 22263858540000. Its totient is φ = 20036278131120.

The previous prime is 21150035153449. The next prime is 21150035153503. The reversal of 21150035153461 is 16435153005112.

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 21150035153461 - 2³⁷ = 21012596199989 is a prime.

It is a super-3 number, since 3×21150035153461³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21150035153461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21150035153441) 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, 15936211 + ... + 17212288.

It is an arithmetic number, because the mean of its divisors is an integer number (2782982317500).

Almost surely, 2^{21150035153461} is an apocalyptic number.

It is an amenable number.

21150035153461 is a deficient number, since it is larger than the sum of its proper divisors (1113823386539).

21150035153461 is a wasteful number, since it uses less digits than its factorization.

21150035153461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33182099.

The product of its (nonzero) digits is 54000, while the sum is 37.

Adding to 21150035153461 its reverse (16435153005112), we get a palindrome (37585188158573).

The spelling of 21150035153461 in words is "twenty-one trillion, one hundred fifty billion, thirty-five million, one hundred fifty-three thousand, four hundred sixty-one".