66152005 has 8 divisors (see below), whose sum is σ = 79624224. Its totient is φ = 52760400.

The previous prime is 66151997. The next prime is 66152011. The reversal of 66152005 is 50025166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66152005 - 2³ = 66151997 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, 18331 + ... + 21640.

It is an arithmetic number, because the mean of its divisors is an integer number (9953028).

Almost surely, 2^66152005 is an apocalyptic number.

It is an amenable number.

66152005 is a deficient number, since it is larger than the sum of its proper divisors (13472219).

66152005 is a wasteful number, since it uses less digits than its factorization.

66152005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40307.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 66152005 is about 8133.3882853335. The cubic root of 66152005 is about 404.4340110022.

The spelling of 66152005 in words is "sixty-six million, one hundred fifty-two thousand, five".