66469351 has 8 divisors (see below), whose sum is σ = 71664320. Its totient is φ = 61286112.

The previous prime is 66469349. The next prime is 66469369. The reversal of 66469351 is 15396466.

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 66469351 - 2¹ = 66469349 is a prime.

It is a super-2 number, since 2×66469351² = 8836349244722402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66469331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11506 + ... + 16288.

It is an arithmetic number, because the mean of its divisors is an integer number (8958040).

Almost surely, 2^66469351 is an apocalyptic number.

66469351 is a deficient number, since it is larger than the sum of its proper divisors (5194969).

66469351 is a wasteful number, since it uses less digits than its factorization.

66469351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5865.

The product of its digits is 116640, while the sum is 40.

The square root of 66469351 is about 8152.8737878125. The cubic root of 66469351 is about 405.0796998054.

The spelling of 66469351 in words is "sixty-six million, four hundred sixty-nine thousand, three hundred fifty-one".