1001666148 has 48 divisors (see below), whose sum is σ = 2763223680. Its totient is φ = 276321024.

The previous prime is 1001666143. The next prime is 1001666173. The reversal of 1001666148 is 8416661001.

It is not an unprimeable number, because it can be changed into a prime (1001666143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203161 + ... + 208032.

It is an arithmetic number, because the mean of its divisors is an integer number (57567160).

Almost surely, 2^1001666148 is an apocalyptic number.

It is an amenable number.

1001666148 is an abundant number, since it is smaller than the sum of its proper divisors (1761557532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001666148 is a wasteful number, since it uses less digits than its factorization.

1001666148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411236 (or 411234 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1001666148 is about 31649.1097505127. The cubic root of 1001666148 is about 1000.5550745020. Note that the first 3 decimals are identical.

The spelling of 1001666148 in words is "one billion, one million, six hundred sixty-six thousand, one hundred forty-eight".