16377639771551 has 32 divisors (see below), whose sum is σ = 17033950764480. Its totient is φ = 15727756262400.

The previous prime is 16377639771547. The next prime is 16377639771553. The reversal of 16377639771551 is 15517793677361.

It is a cyclic number.

It is not a de Polignac number, because 16377639771551 - 2² = 16377639771547 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 (16377639771553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6496484171 + ... + 6496486691.

It is an arithmetic number, because the mean of its divisors is an integer number (532310961390).

Almost surely, 2^{16377639771551} is an apocalyptic number.

16377639771551 is a deficient number, since it is larger than the sum of its proper divisors (656310992929).

16377639771551 is a wasteful number, since it uses less digits than its factorization.

16377639771551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395.

The product of its digits is 175032900, while the sum is 68.

The spelling of 16377639771551 in words is "sixteen trillion, three hundred seventy-seven billion, six hundred thirty-nine million, seven hundred seventy-one thousand, five hundred fifty-one".