66652803 has 12 divisors (see below), whose sum is σ = 110030128. Its totient is φ = 38087280.

The previous prime is 66652793. The next prime is 66652811. The reversal of 66652803 is 30825666.

66652803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66652803 - 2⁴ = 66652787 is a prime.

It is a super-2 number, since 2×66652803² = 8885192295513618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66652813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 528928 + ... + 529053.

Almost surely, 2^66652803 is an apocalyptic number.

66652803 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

66652803 is a deficient number, since it is larger than the sum of its proper divisors (43377325).

66652803 is a wasteful number, since it uses less digits than its factorization.

66652803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057994 (or 1057991 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 66652803 is about 8164.1167924032. The cubic root of 66652803 is about 405.4520238826.

The spelling of 66652803 in words is "sixty-six million, six hundred fifty-two thousand, eight hundred three".