1662130998 has 48 divisors (see below), whose sum is σ = 4064158800. Its totient is φ = 486306240.

The previous prime is 1662130931. The next prime is 1662131033. The reversal of 1662130998 is 8990312661.

It is a happy number.

1662130998 is a `hidden beast` number, since 16 + 621 + 3 + 0 + 9 + 9 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138993 + ... + 150476.

It is an arithmetic number, because the mean of its divisors is an integer number (84669975).

Almost surely, 2^1662130998 is an apocalyptic number.

1662130998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1662130998 is an abundant number, since it is smaller than the sum of its proper divisors (2402027802).

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

1662130998 is a wasteful number, since it uses less digits than its factorization.

1662130998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289517 (or 289514 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1662130998 is about 40769.2408317840. The cubic root of 1662130998 is about 1184.5545984056.

The spelling of 1662130998 in words is "one billion, six hundred sixty-two million, one hundred thirty thousand, nine hundred ninety-eight".