66434015 has 8 divisors (see below), whose sum is σ = 80813328. Its totient is φ = 52418880.

The previous prime is 66434003. The next prime is 66434033. The reversal of 66434015 is 51043466.

It is a happy number.

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

It is not a de Polignac number, because 66434015 - 2⁴ = 66433999 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, 90641 + ... + 91370.

It is an arithmetic number, because the mean of its divisors is an integer number (10101666).

Almost surely, 2^66434015 is an apocalyptic number.

66434015 is a deficient number, since it is larger than the sum of its proper divisors (14379313).

66434015 is a wasteful number, since it uses less digits than its factorization.

66434015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182089.

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

The square root of 66434015 is about 8150.7064111033. The cubic root of 66434015 is about 405.0079051447.

The spelling of 66434015 in words is "sixty-six million, four hundred thirty-four thousand, fifteen".