1662143701 has 8 divisors (see below), whose sum is σ = 1672613280. Its totient is φ = 1651687632.

The previous prime is 1662143699. The next prime is 1662143741. The reversal of 1662143701 is 1073412661.

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

It is a cyclic number.

It is not a de Polignac number, because 1662143701 - 2¹ = 1662143699 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662143741) 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, 365226 + ... + 369748.

It is an arithmetic number, because the mean of its divisors is an integer number (209076660).

Almost surely, 2^1662143701 is an apocalyptic number.

It is an amenable number.

1662143701 is a deficient number, since it is larger than the sum of its proper divisors (10469579).

1662143701 is a wasteful number, since it uses less digits than its factorization.

1662143701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6755.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1662143701 is about 40769.3966229573. The cubic root of 1662143701 is about 1184.5576160897.

The spelling of 1662143701 in words is "one billion, six hundred sixty-two million, one hundred forty-three thousand, seven hundred one".