1662253888 has 28 divisors (see below), whose sum is σ = 3368722752. Its totient is φ = 813441920.

The previous prime is 1662253877. The next prime is 1662253909. The reversal of 1662253888 is 8883522661.

It is a super-2 number, since 2×1662253888² = 5526175976342233088, which contains 22 as substring.

It is a congruent number.

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, 273298 + ... + 279313.

Almost surely, 2^1662253888 is an apocalyptic number.

It is an amenable number.

1662253888 is an abundant number, since it is smaller than the sum of its proper divisors (1706468864).

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

1662253888 is an equidigital number, since it uses as much as digits as its factorization.

1662253888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552670 (or 552660 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The square root of 1662253888 is about 40770.7479450647. The cubic root of 1662253888 is about 1184.5837911161.

The spelling of 1662253888 in words is "one billion, six hundred sixty-two million, two hundred fifty-three thousand, eight hundred eighty-eight".