16126121413 has 4 divisors (see below), whose sum is σ = 16187437728. Its totient is φ = 16064805100.

The previous prime is 16126121387. The next prime is 16126121419. The reversal of 16126121413 is 31412162161.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31412162161 = 347 ⋅90524963.

It is a cyclic number.

It is not a de Polignac number, because 16126121413 - 2²¹ = 16124024261 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 (16126121419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30657763 + ... + 30658288.

It is an arithmetic number, because the mean of its divisors is an integer number (4046859432).

Almost surely, 2^16126121413 is an apocalyptic number.

It is an amenable number.

16126121413 is a deficient number, since it is larger than the sum of its proper divisors (61316315).

16126121413 is an equidigital number, since it uses as much as digits as its factorization.

16126121413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61316314.

The product of its digits is 1728, while the sum is 28.

Adding to 16126121413 its reverse (31412162161), we get a palindrome (47538283574).

The spelling of 16126121413 in words is "sixteen billion, one hundred twenty-six million, one hundred twenty-one thousand, four hundred thirteen".