66285274 has 32 divisors (see below), whose sum is σ = 113762880. Its totient is φ = 28694400.

The previous prime is 66285253. The next prime is 66285293. The reversal of 66285274 is 47258266.

66285274 = T₂₇₅ + T₂₇₆ + ... + T₇₄₇.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37932 + ... + 39640.

It is an arithmetic number, because the mean of its divisors is an integer number (3555090).

Almost surely, 2^66285274 is an apocalyptic number.

66285274 is a deficient number, since it is larger than the sum of its proper divisors (47477606).

66285274 is a wasteful number, since it uses less digits than its factorization.

66285274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806.

The product of its digits is 161280, while the sum is 40.

The square root of 66285274 is about 8141.5768742916. The cubic root of 66285274 is about 404.7054180555.

The spelling of 66285274 in words is "sixty-six million, two hundred eighty-five thousand, two hundred seventy-four".