1672611601 has 4 divisors (see below), whose sum is σ = 1692763632. Its totient is φ = 1652459572.

The previous prime is 1672611599. The next prime is 1672611653. The reversal of 1672611601 is 1061162761.

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 1672611601 - 2¹ = 1672611599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672611901) 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, 10075891 + ... + 10076056.

It is an arithmetic number, because the mean of its divisors is an integer number (423190908).

Almost surely, 2^1672611601 is an apocalyptic number.

It is an amenable number.

1672611601 is a deficient number, since it is larger than the sum of its proper divisors (20152031).

1672611601 is an equidigital number, since it uses as much as digits as its factorization.

1672611601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20152030.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1672611601 is about 40897.5745124329. The cubic root of 1672611601 is about 1187.0391285041.

The spelling of 1672611601 in words is "one billion, six hundred seventy-two million, six hundred eleven thousand, six hundred one".