1662380141 has 16 divisors (see below), whose sum is σ = 1728604800. Its totient is φ = 1597377600.

The previous prime is 1662380123. The next prime is 1662380147. The reversal of 1662380141 is 1410832661.

It is a cyclic number.

It is not a de Polignac number, because 1662380141 - 2²⁶ = 1595271277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1662380098 and 1662380107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662380147) 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, 2371091 + ... + 2371791.

It is an arithmetic number, because the mean of its divisors is an integer number (108037800).

Almost surely, 2^1662380141 is an apocalyptic number.

It is an amenable number.

1662380141 is a deficient number, since it is larger than the sum of its proper divisors (66224659).

1662380141 is a wasteful number, since it uses less digits than its factorization.

1662380141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1662380141 is about 40772.2962438958. The cubic root of 1662380141 is about 1184.6137812141.

The spelling of 1662380141 in words is "one billion, six hundred sixty-two million, three hundred eighty thousand, one hundred forty-one".