4161662378 has 64 divisors (see below), whose sum is σ = 6876334080. Its totient is φ = 1882440000.

The previous prime is 4161662377. The next prime is 4161662381. The reversal of 4161662378 is 8732661614.

It is a super-2 number, since 2×4161662378² = 34638867496921229768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4161662377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24920051 + ... + 24920217.

It is an arithmetic number, because the mean of its divisors is an integer number (107442720).

Almost surely, 2^4161662378 is an apocalyptic number.

4161662378 is a deficient number, since it is larger than the sum of its proper divisors (2714671702).

4161662378 is a wasteful number, since it uses less digits than its factorization.

4161662378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483.

The product of its digits is 290304, while the sum is 44.

The square root of 4161662378 is about 64510.9477375740. The cubic root of 4161662378 is about 1608.5045045868.

The spelling of 4161662378 in words is "four billion, one hundred sixty-one million, six hundred sixty-two thousand, three hundred seventy-eight".