16126775760621 has 8 divisors (see below), whose sum is σ = 21502389724704. Its totient is φ = 10751172818480.

The previous prime is 16126775760553. The next prime is 16126775760653. The reversal of 16126775760621 is 12606757762161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16126775760621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16126775762621) 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, 1677235 + ... + 5921711.

It is an arithmetic number, because the mean of its divisors is an integer number (2687798715588).

Almost surely, 2^{16126775760621} is an apocalyptic number.

It is an amenable number.

16126775760621 is a deficient number, since it is larger than the sum of its proper divisors (5375613964083).

16126775760621 is a wasteful number, since it uses less digits than its factorization.

16126775760621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510971.

The product of its (nonzero) digits is 8890560, while the sum is 57.

The spelling of 16126775760621 in words is "sixteen trillion, one hundred twenty-six billion, seven hundred seventy-five million, seven hundred sixty thousand, six hundred twenty-one".