16377639771552 has 48 divisors (see below), whose sum is σ = 45254004636960. Its totient is φ = 5171886243072.

The previous prime is 16377639771547. The next prime is 16377639771553. The reversal of 16377639771552 is 25517793677361.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 4489482763 + ... + 4489486410.

It is an arithmetic number, because the mean of its divisors is an integer number (942791763270).

Almost surely, 2^{16377639771552} is an apocalyptic number.

16377639771552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16377639771552 is an abundant number, since it is smaller than the sum of its proper divisors (28876364865408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16377639771552 is a wasteful number, since it uses less digits than its factorization.

16377639771552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8978969205 (or 8978969197 counting only the distinct ones).

The product of its digits is 350065800, while the sum is 69.

The spelling of 16377639771552 in words is "sixteen trillion, three hundred seventy-seven billion, six hundred thirty-nine million, seven hundred seventy-one thousand, five hundred fifty-two".