66093490 has 32 divisors (see below), whose sum is σ = 126023040. Its totient is φ = 24904704.

The previous prime is 66093487. The next prime is 66093493. The reversal of 66093490 is 9439066.

It is an interprime number because it is at equal distance from previous prime (66093487) and next prime (66093493).

It is not an unprimeable number, because it can be changed into a prime (66093493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13266 + ... + 17554.

It is an arithmetic number, because the mean of its divisors is an integer number (3938220).

Almost surely, 2^66093490 is an apocalyptic number.

66093490 is a deficient number, since it is larger than the sum of its proper divisors (59929550).

66093490 is a wasteful number, since it uses less digits than its factorization.

66093490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 66093490 is about 8129.7902801979. The cubic root of 66093490 is about 404.3147279592.

The spelling of 66093490 in words is "sixty-six million, ninety-three thousand, four hundred ninety".