1671655072 has 24 divisors (see below), whose sum is σ = 3295809972. Its totient is φ = 834624000.

The previous prime is 1671655061. The next prime is 1671655081. The reversal of 1671655072 is 2705561761.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1527559056 + 144096016 = 39084^2 + 12004^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14829 + ... + 59692.

Almost surely, 2^1671655072 is an apocalyptic number.

It is an amenable number.

1671655072 is a deficient number, since it is larger than the sum of its proper divisors (1624154900).

1671655072 is an equidigital number, since it uses as much as digits as its factorization.

1671655072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75232 (or 75224 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 1671655072 is about 40885.8786379845. The cubic root of 1671655072 is about 1186.8128050185.

The spelling of 1671655072 in words is "one billion, six hundred seventy-one million, six hundred fifty-five thousand, seventy-two".