66053888 has 18 divisors (see below), whose sum is σ = 131850264. Its totient is φ = 33026816.

The previous prime is 66053887. The next prime is 66053921. The reversal of 66053888 is 88835066.

It is a super-2 number, since 2×66053888² = 8726232239833088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66053887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128756 + ... + 129267.

Almost surely, 2^66053888 is an apocalyptic number.

It is an amenable number.

66053888 is a deficient number, since it is larger than the sum of its proper divisors (65796376).

66053888 is an equidigital number, since it uses as much as digits as its factorization.

66053888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258039 (or 258025 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 66053888 is about 8127.3543050614. The cubic root of 66053888 is about 404.2339591831.

The spelling of 66053888 in words is "sixty-six million, fifty-three thousand, eight hundred eighty-eight".