16427891427655 has 8 divisors (see below), whose sum is σ = 19718104930272. Its totient is φ = 13139222997408.

The previous prime is 16427891427653. The next prime is 16427891427659. The reversal of 16427891427655 is 55672419872461.

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 16427891427655 - 2¹ = 16427891427653 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 (16427891427653) 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, 386244699 + ... + 386287228.

It is an arithmetic number, because the mean of its divisors is an integer number (2464763116284).

Almost surely, 2^{16427891427655} is an apocalyptic number.

16427891427655 is a deficient number, since it is larger than the sum of its proper divisors (3290213502617).

16427891427655 is an equidigital number, since it uses as much as digits as its factorization.

16427891427655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772536185.

The product of its digits is 203212800, while the sum is 67.

The spelling of 16427891427655 in words is "sixteen trillion, four hundred twenty-seven billion, eight hundred ninety-one million, four hundred twenty-seven thousand, six hundred fifty-five".