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16421715112513 = 82145307441479
BaseRepresentation
bin1110111011110111101001…
…1111101111001001000001
32011010220022120011012000211
43232331322133233021001
54123023133032100023
654532010510314121
73313300260230434
oct356757237571101
964126276135024
1016421715112513
115261457082247
121a1277b1b8941
1392173a93c449
1440ab5b0a381b
151d7276dcba0d
hexeef7a7ef241

16421715112513 has 8 divisors (see below), whose sum is σ = 16442117340480. Its totient is φ = 16401313859760.

The previous prime is 16421715112511. The next prime is 16421715112553. The reversal of 16421715112513 is 31521151712461.

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 16421715112513 - 21 = 16421715112511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16421715112511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36976308 + ... + 37417786.

It is an arithmetic number, because the mean of its divisors is an integer number (2055264667560).

Almost surely, 216421715112513 is an apocalyptic number.

It is an amenable number.

16421715112513 is a deficient number, since it is larger than the sum of its proper divisors (20402227967).

16421715112513 is an equidigital number, since it uses as much as digits as its factorization.

16421715112513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487607.

The product of its digits is 50400, while the sum is 40.

Adding to 16421715112513 its reverse (31521151712461), we get a palindrome (47942866824974).

The spelling of 16421715112513 in words is "sixteen trillion, four hundred twenty-one billion, seven hundred fifteen million, one hundred twelve thousand, five hundred thirteen".

Divisors: 1 821 45307 441479 37197047 362454259 20002089053 16421715112513