16551074607157 has 4 divisors (see below), whose sum is σ = 16697544294060. Its totient is φ = 16404604920256.

The previous prime is 16551074607103. The next prime is 16551074607187. The reversal of 16551074607157 is 75170647015561.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6824915902116 + 9726158705041 = 2612454^2 + 3118679^2 .

It is a cyclic number.

It is not a de Polignac number, because 16551074607157 - 2²³ = 16551066218549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16551074607098 and 16551074607107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16551074607187) 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, 73234843282 + ... + 73234843507.

It is an arithmetic number, because the mean of its divisors is an integer number (4174386073515).

Almost surely, 2^{16551074607157} is an apocalyptic number.

It is an amenable number.

16551074607157 is a deficient number, since it is larger than the sum of its proper divisors (146469686903).

16551074607157 is a wasteful number, since it uses less digits than its factorization.

16551074607157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146469686902.

The product of its (nonzero) digits is 6174000, while the sum is 55.

The spelling of 16551074607157 in words is "sixteen trillion, five hundred fifty-one billion, seventy-four million, six hundred seven thousand, one hundred fifty-seven".