66570962 has 12 divisors (see below), whose sum is σ = 102356538. Its totient is φ = 32472000.

The previous prime is 66570961. The next prime is 66570989. The reversal of 66570962 is 26907566.

It can be written as a sum of positive squares in 3 ways, for example, as 3352561 + 63218401 = 1831^2 + 7951^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (66570961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6539 + ... + 13262.

Almost surely, 2^66570962 is an apocalyptic number.

66570962 is a deficient number, since it is larger than the sum of its proper divisors (35785576).

66570962 is a wasteful number, since it uses less digits than its factorization.

66570962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19885 (or 19844 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 66570962 is about 8159.1030144251. The cubic root of 66570962 is about 405.2860084105.

The spelling of 66570962 in words is "sixty-six million, five hundred seventy thousand, nine hundred sixty-two".