1672788165 has 8 divisors (see below), whose sum is σ = 2676461088. Its totient is φ = 892153680.

The previous prime is 1672788163. The next prime is 1672788181. The reversal of 1672788165 is 5618872761.

It is a happy number.

1672788165 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1672788165 - 2¹ = 1672788163 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672788163) 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, 55759591 + ... + 55759620.

It is an arithmetic number, because the mean of its divisors is an integer number (334557636).

Almost surely, 2^1672788165 is an apocalyptic number.

1672788165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1672788165 is a deficient number, since it is larger than the sum of its proper divisors (1003672923).

1672788165 is a wasteful number, since it uses less digits than its factorization.

1672788165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111519219.

The product of its digits is 1128960, while the sum is 51.

The square root of 1672788165 is about 40899.7330675886. The cubic root of 1672788165 is about 1187.0808957225.

The spelling of 1672788165 in words is "one billion, six hundred seventy-two million, seven hundred eighty-eight thousand, one hundred sixty-five".