16556142463077 has 16 divisors (see below), whose sum is σ = 25228688008832. Its totient is φ = 9460547668800.

The previous prime is 16556142463009. The next prime is 16556142463123. The reversal of 16556142463077 is 77036424165561.

It is not a de Polignac number, because 16556142463077 - 2⁷ = 16556142462949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556142463177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2427598 + ... + 6245439.

It is an arithmetic number, because the mean of its divisors is an integer number (1576793000552).

Almost surely, 2^{16556142463077} is an apocalyptic number.

It is an amenable number.

16556142463077 is a deficient number, since it is larger than the sum of its proper divisors (8672545545755).

16556142463077 is an equidigital number, since it uses as much as digits as its factorization.

16556142463077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8763948.

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 16556142463077 in words is "sixteen trillion, five hundred fifty-six billion, one hundred forty-two million, four hundred sixty-three thousand, seventy-seven".