16557377006 has 4 divisors (see below), whose sum is σ = 24836065512. Its totient is φ = 8278688502.

The previous prime is 16557376993. The next prime is 16557377033. The reversal of 16557377006 is 60077375561.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4139344250 + ... + 4139344253.

It is an arithmetic number, because the mean of its divisors is an integer number (6209016378).

Almost surely, 2^16557377006 is an apocalyptic number.

16557377006 is a deficient number, since it is larger than the sum of its proper divisors (8278688506).

16557377006 is an equidigital number, since it uses as much as digits as its factorization.

16557377006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8278688505.

The product of its (nonzero) digits is 926100, while the sum is 47.

The spelling of 16557377006 in words is "sixteen billion, five hundred fifty-seven million, three hundred seventy-seven thousand, six".