1662144546 has 16 divisors (see below), whose sum is σ = 3431524608. Its totient is φ = 536175600.

The previous prime is 1662144499. The next prime is 1662144571. The reversal of 1662144546 is 6454412661.

It is a super-2 number, since 2×1662144546² = 5525448983595092232, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4467945 + ... + 4468316.

It is an arithmetic number, because the mean of its divisors is an integer number (214470288).

Almost surely, 2^1662144546 is an apocalyptic number.

1662144546 is an abundant number, since it is smaller than the sum of its proper divisors (1769380062).

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

1662144546 is a wasteful number, since it uses less digits than its factorization.

1662144546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8936297.

The product of its digits is 138240, while the sum is 39.

The square root of 1662144546 is about 40769.4069861213. The cubic root of 1662144546 is about 1184.5578168246.

The spelling of 1662144546 in words is "one billion, six hundred sixty-two million, one hundred forty-four thousand, five hundred forty-six".