66653055 has 24 divisors (see below), whose sum is σ = 132037152. Its totient is φ = 30469824.

The previous prime is 66652997. The next prime is 66653063. The reversal of 66653055 is 55035666.

It is a happy number.

It is not a de Polignac number, because 66653055 - 2⁹ = 66652543 is a prime.

It is a super-3 number, since 3×66653055³ (a number of 24 digits) contains 333 as substring.

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, 105484 + ... + 106113.

It is an arithmetic number, because the mean of its divisors is an integer number (5501548).

Almost surely, 2^66653055 is an apocalyptic number.

66653055 is a deficient number, since it is larger than the sum of its proper divisors (65384097).

66653055 is a wasteful number, since it uses less digits than its factorization.

66653055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211615 (or 211612 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 66653055 is about 8164.1322257788. The cubic root of 66653055 is about 405.4525348578.

The spelling of 66653055 in words is "sixty-six million, six hundred fifty-three thousand, fifty-five".