66952451 has 8 divisors (see below), whose sum is σ = 67506384. Its totient is φ = 66401280.

The previous prime is 66952439. The next prime is 66952453. The reversal of 66952451 is 15425966.

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 66952451 - 2¹⁰ = 66951427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66952453) 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, 84680 + ... + 85466.

It is an arithmetic number, because the mean of its divisors is an integer number (8438298).

Almost surely, 2^66952451 is an apocalyptic number.

66952451 is a deficient number, since it is larger than the sum of its proper divisors (553933).

66952451 is a wasteful number, since it uses less digits than its factorization.

66952451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381.

The product of its digits is 64800, while the sum is 38.

The square root of 66952451 is about 8182.4477389104. The cubic root of 66952451 is about 406.0587064355.

The spelling of 66952451 in words is "sixty-six million, nine hundred fifty-two thousand, four hundred fifty-one".