2141660643 has 8 divisors (see below), whose sum is σ = 2954014800. Its totient is φ = 1378540128.

The previous prime is 2141660627. The next prime is 2141660657. The reversal of 2141660643 is 3460661412.

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

It is not a de Polignac number, because 2141660643 - 2⁴ = 2141660627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2141660693) 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, 12308308 + ... + 12308481.

It is an arithmetic number, because the mean of its divisors is an integer number (369251850).

Almost surely, 2^2141660643 is an apocalyptic number.

2141660643 is a deficient number, since it is larger than the sum of its proper divisors (812354157).

2141660643 is a wasteful number, since it uses less digits than its factorization.

2141660643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24616821.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 2141660643 is about 46278.0795085535. The cubic root of 2141660643 is about 1288.9919900204.

The spelling of 2141660643 in words is "two billion, one hundred forty-one million, six hundred sixty thousand, six hundred forty-three".