661033010 has 32 divisors (see below), whose sum is σ = 1299238272. Its totient is φ = 240151680.

The previous prime is 661033001. The next prime is 661033069. The reversal of 661033010 is 10330166.

661033010 = 14843² + 14844² + 14845².

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157094 + ... + 161246.

It is an arithmetic number, because the mean of its divisors is an integer number (40601196).

Almost surely, 2^661033010 is an apocalyptic number.

661033010 is a deficient number, since it is larger than the sum of its proper divisors (638205262).

661033010 is a wasteful number, since it uses less digits than its factorization.

661033010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 661033010 is about 25710.5622264469. The cubic root of 661033010 is about 871.1127743629.

Adding to 661033010 its reverse (10330166), we get a palindrome (671363176).

It can be divided in two parts, 6 and 61033010, that added together give a palindrome (61033016).

The spelling of 661033010 in words is "six hundred sixty-one million, thirty-three thousand, ten".