66150007 has 8 divisors (see below), whose sum is σ = 82472832. Its totient is φ = 51545400.

The previous prime is 66149983. The next prime is 66150017. The reversal of 66150007 is 70005166.

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 66150007 - 2¹⁵ = 66117239 is a prime.

It is a super-2 number, since 2×66150007² = 8751646852200098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66150017) 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, 429469 + ... + 429622.

It is an arithmetic number, because the mean of its divisors is an integer number (10309104).

Almost surely, 2^66150007 is an apocalyptic number.

66150007 is a deficient number, since it is larger than the sum of its proper divisors (16322825).

66150007 is a wasteful number, since it uses less digits than its factorization.

66150007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859109.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 66150007 is about 8133.2654573670. The cubic root of 66150007 is about 404.4299392320.

The spelling of 66150007 in words is "sixty-six million, one hundred fifty thousand, seven".