16377601 has 4 divisors (see below), whose sum is σ = 17239600. Its totient is φ = 15515604.

The previous prime is 16377593. The next prime is 16377607. The reversal of 16377601 is 10677361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16377601 - 2³ = 16377593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16377607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430971 + ... + 431008.

It is an arithmetic number, because the mean of its divisors is an integer number (4309900).

Almost surely, 2^16377601 is an apocalyptic number.

16377601 is the 2560-th centered pentagonal number.

It is an amenable number.

16377601 is a deficient number, since it is larger than the sum of its proper divisors (861999).

16377601 is an equidigital number, since it uses as much as digits as its factorization.

16377601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861998.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 16377601 is about 4046.9248819320. The cubic root of 16377601 is about 253.9510983213.

The spelling of 16377601 in words is "sixteen million, three hundred seventy-seven thousand, six hundred one".