66763333 has 24 divisors (see below), whose sum is σ = 84281568. Its totient is φ = 52418016.

The previous prime is 66763331. The next prime is 66763337. The reversal of 66763333 is 33336766.

It is a happy number.

It is not a de Polignac number, because 66763333 - 2¹ = 66763331 is a prime.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 66763333 = 285³ + 352³ = 309³ + 334³.

It is a junction number, because it is equal to n+sod(n) for n = 66763292 and 66763301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66763331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103510 + ... + 104152.

It is an arithmetic number, because the mean of its divisors is an integer number (3511732).

Almost surely, 2^66763333 is an apocalyptic number.

It is an amenable number.

66763333 is a deficient number, since it is larger than the sum of its proper divisors (17518235).

66763333 is a wasteful number, since it uses less digits than its factorization.

66763333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 826 counting only the distinct ones).

The product of its digits is 122472, while the sum is 37.

The square root of 66763333 is about 8170.8832447906. The cubic root of 66763333 is about 405.6760197789.

It can be divided in two parts, 667 and 63333, that added together give a cube (64000 = 40³).

The spelling of 66763333 in words is "sixty-six million, seven hundred sixty-three thousand, three hundred thirty-three".