66100010 has 16 divisors (see below), whose sum is σ = 121225896. Its totient is φ = 25940928.

The previous prime is 66100007. The next prime is 66100037. The reversal of 66100010 is 1000166.

It can be written as a sum of positive squares in 4 ways, for example, as 65302561 + 797449 = 8081^2 + 893^2 .

It is a super-2 number, since 2×66100010² = 8738422644000200, which contains 22 as substring.

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, 61829 + ... + 62888.

Almost surely, 2^66100010 is an apocalyptic number.

66100010 is a deficient number, since it is larger than the sum of its proper divisors (55125886).

66100010 is a wasteful number, since it uses less digits than its factorization.

66100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124777.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 66100010 is about 8130.1912646628. The cubic root of 66100010 is about 404.3280224876.

Adding to 66100010 its reverse (1000166), we get a palindrome (67100176).

It can be divided in two parts, 6 and 6100010, that added together give a palindrome (6100016).

The spelling of 66100010 in words is "sixty-six million, one hundred thousand, ten".