66695353 has 4 divisors (see below), whose sum is σ = 68846848. Its totient is φ = 64543860.

The previous prime is 66695323. The next prime is 66695371. The reversal of 66695353 is 35359666.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 66695353 - 2¹³ = 66687161 is a prime.

It is a super-2 number, since 2×66695353² = 8896540223589218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66695323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075701 + ... + 1075762.

It is an arithmetic number, because the mean of its divisors is an integer number (17211712).

Almost surely, 2^66695353 is an apocalyptic number.

It is an amenable number.

66695353 is a deficient number, since it is larger than the sum of its proper divisors (2151495).

66695353 is a wasteful number, since it uses less digits than its factorization.

66695353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151494.

The product of its digits is 437400, while the sum is 43.

The square root of 66695353 is about 8166.7222923276. The cubic root of 66695353 is about 405.5382833897.

The spelling of 66695353 in words is "sixty-six million, six hundred ninety-five thousand, three hundred fifty-three".