66362601 has 4 divisors (see below), whose sum is σ = 88483472. Its totient is φ = 44241732.

The previous prime is 66362563. The next prime is 66362603. The reversal of 66362601 is 10626366.

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 66362601 - 2⁷ = 66362473 is a prime.

It is a super-2 number, since 2×66362601² = 8807989622970402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66362603) 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, 11060431 + ... + 11060436.

It is an arithmetic number, because the mean of its divisors is an integer number (22120868).

Almost surely, 2^66362601 is an apocalyptic number.

It is an amenable number.

66362601 is a deficient number, since it is larger than the sum of its proper divisors (22120871).

66362601 is a wasteful number, since it uses less digits than its factorization.

66362601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22120870.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 66362601 is about 8146.3243858810. The cubic root of 66362601 is about 404.8627304952.

Adding to 66362601 its reverse (10626366), we get a palindrome (76988967).

The spelling of 66362601 in words is "sixty-six million, three hundred sixty-two thousand, six hundred one".