16442615361157 has 4 divisors (see below), whose sum is σ = 16887010370956. Its totient is φ = 15998220351360.

The previous prime is 16442615361143. The next prime is 16442615361163. The reversal of 16442615361157 is 75116351624461.

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 12496854237921 + 3945761123236 = 3535089^2 + 1986394^2 .

It is a cyclic number.

It is not a de Polignac number, because 16442615361157 - 2¹⁵ = 16442615328389 is a prime.

It is a super-3 number, since 3×16442615361157³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442615365157) 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, 222197504844 + ... + 222197504917.

It is an arithmetic number, because the mean of its divisors is an integer number (4221752592739).

Almost surely, 2^{16442615361157} is an apocalyptic number.

It is an amenable number.

16442615361157 is a deficient number, since it is larger than the sum of its proper divisors (444395009799).

16442615361157 is an equidigital number, since it uses as much as digits as its factorization.

16442615361157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444395009798.

The product of its digits is 3628800, while the sum is 52.

The spelling of 16442615361157 in words is "sixteen trillion, four hundred forty-two billion, six hundred fifteen million, three hundred sixty-one thousand, one hundred fifty-seven".