66062405 has 8 divisors (see below), whose sum is σ = 81118752. Its totient is φ = 51620688.

The previous prime is 66062389. The next prime is 66062413. The reversal of 66062405 is 50426066.

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 66062405 - 2⁴ = 66062389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153419 + ... + 153848.

It is an arithmetic number, because the mean of its divisors is an integer number (10139844).

Almost surely, 2^66062405 is an apocalyptic number.

It is an amenable number.

66062405 is a deficient number, since it is larger than the sum of its proper divisors (15056347).

66062405 is a wasteful number, since it uses less digits than its factorization.

66062405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307315.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 66062405 is about 8127.8782594229. The cubic root of 66062405 is about 404.2513324358.

The spelling of 66062405 in words is "sixty-six million, sixty-two thousand, four hundred five".