66343801 has 8 divisors (see below), whose sum is σ = 69960800. Its totient is φ = 62739360.

The previous prime is 66343777. The next prime is 66343807. The reversal of 66343801 is 10834366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66343801 - 2²¹ = 64246649 is a prime.

It is a super-2 number, since 2×66343801² = 8802999862255202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66343807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8941 + ... + 14581.

It is an arithmetic number, because the mean of its divisors is an integer number (8745100).

Almost surely, 2^66343801 is an apocalyptic number.

It is an amenable number.

66343801 is a deficient number, since it is larger than the sum of its proper divisors (3616999).

66343801 is a wasteful number, since it uses less digits than its factorization.

66343801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6279.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66343801 is about 8145.1704095126. The cubic root of 66343801 is about 404.8244954146.

The spelling of 66343801 in words is "sixty-six million, three hundred forty-three thousand, eight hundred one".