1446665660 has 48 divisors (see below), whose sum is σ = 3509140320. Its totient is φ = 495114240.

The previous prime is 1446665653. The next prime is 1446665749. The reversal of 1446665660 is 665666441.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189665 + ... + 197144.

It is an arithmetic number, because the mean of its divisors is an integer number (73107090).

Almost surely, 2^1446665660 is an apocalyptic number.

1446665660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1446665660 is an abundant number, since it is smaller than the sum of its proper divisors (2062474660).

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

1446665660 is a wasteful number, since it uses less digits than its factorization.

1446665660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386846 (or 386844 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 44.

The square root of 1446665660 is about 38035.0583015197. The cubic root of 1446665660 is about 1130.9829492440.

The spelling of 1446665660 in words is "one billion, four hundred forty-six million, six hundred sixty-five thousand, six hundred sixty".