1662000029 has 4 divisors (see below), whose sum is σ = 1662093660. Its totient is φ = 1661906400.

The previous prime is 1661999981. The next prime is 1662000031. The reversal of 1662000029 is 9200002661.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9200002661 = 4951 ⋅1858211.

It can be written as a sum of positive squares in 2 ways, for example, as 506340004 + 1155660025 = 22502^2 + 33995^2 .

It is a cyclic number.

It is not a de Polignac number, because 1662000029 - 2¹⁶ = 1661934493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1661999971 and 1662000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662000049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11114 + ... + 58715.

It is an arithmetic number, because the mean of its divisors is an integer number (415523415).

Almost surely, 2^1662000029 is an apocalyptic number.

It is an amenable number.

1662000029 is a deficient number, since it is larger than the sum of its proper divisors (93631).

1662000029 is an equidigital number, since it uses as much as digits as its factorization.

1662000029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93630.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1662000029 is about 40767.6345769533. The cubic root of 1662000029 is about 1184.5234849321.

The spelling of 1662000029 in words is "one billion, six hundred sixty-two million, twenty-nine", and thus it is an aban number.