16124261657 has 8 divisors (see below), whose sum is σ = 18428832576. Its totient is φ = 13819966992.

The previous prime is 16124261633. The next prime is 16124261749. The reversal of 16124261657 is 75616242161.

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 16124261657 - 2¹² = 16124257561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16124261627) 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, 76463 + ... + 195179.

It is an arithmetic number, because the mean of its divisors is an integer number (2303604072).

Almost surely, 2^16124261657 is an apocalyptic number.

It is an amenable number.

16124261657 is a deficient number, since it is larger than the sum of its proper divisors (2304570919).

16124261657 is a wasteful number, since it uses less digits than its factorization.

16124261657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138127.

The product of its digits is 120960, while the sum is 41.

The spelling of 16124261657 in words is "sixteen billion, one hundred twenty-four million, two hundred sixty-one thousand, six hundred fifty-seven".