16421156526313 has 32 divisors (see below), whose sum is σ = 21363727656960. Its totient is φ = 12239107013760.

The previous prime is 16421156526277. The next prime is 16421156526323. The reversal of 16421156526313 is 31362565112461.

It is a de Polignac number, because none of the positive numbers 2^k-16421156526313 is a prime.

It is a super-2 number, since 2×16421156526313² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16421156526323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128700333 + ... + 128827861.

It is an arithmetic number, because the mean of its divisors is an integer number (667616489280).

Almost surely, 2^{16421156526313} is an apocalyptic number.

It is an amenable number.

16421156526313 is a deficient number, since it is larger than the sum of its proper divisors (4942571130647).

16421156526313 is a wasteful number, since it uses less digits than its factorization.

16421156526313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200277.

The product of its digits is 777600, while the sum is 46.

The spelling of 16421156526313 in words is "sixteen trillion, four hundred twenty-one billion, one hundred fifty-six million, five hundred twenty-six thousand, three hundred thirteen".