1670200061 has 4 divisors (see below), whose sum is σ = 1676102112. Its totient is φ = 1664298012.

The previous prime is 1670200043. The next prime is 1670200079. The reversal of 1670200061 is 1600020761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1600020761 = 19 ⋅84211619.

It is an interprime number because it is at equal distance from previous prime (1670200043) and next prime (1670200079).

It is a cyclic number.

It is not a de Polignac number, because 1670200061 - 2¹⁴ = 1670183677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670200001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2950601 + ... + 2951166.

It is an arithmetic number, because the mean of its divisors is an integer number (419025528).

Almost surely, 2^1670200061 is an apocalyptic number.

It is an amenable number.

1670200061 is a deficient number, since it is larger than the sum of its proper divisors (5902051).

1670200061 is an equidigital number, since it uses as much as digits as its factorization.

1670200061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902050.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1670200061 is about 40868.0812003696. The cubic root of 1670200061 is about 1186.4683705379.

The spelling of 1670200061 in words is "one billion, six hundred seventy million, two hundred thousand, sixty-one".