1662123650 has 24 divisors (see below), whose sum is σ = 3372601104. Its totient is φ = 604408400.

The previous prime is 1662123647. The next prime is 1662123707. The reversal of 1662123650 is 563212661.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1510472 + ... + 1511571.

It is an arithmetic number, because the mean of its divisors is an integer number (140525046).

Almost surely, 2^1662123650 is an apocalyptic number.

1662123650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1662123650 is an abundant number, since it is smaller than the sum of its proper divisors (1710477454).

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

1662123650 is a wasteful number, since it uses less digits than its factorization.

1662123650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022066 (or 3022061 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1662123650 is about 40769.1507147255. The cubic root of 1662123650 is about 1184.5528528312.

The spelling of 1662123650 in words is "one billion, six hundred sixty-two million, one hundred twenty-three thousand, six hundred fifty".