66100102 has 8 divisors (see below), whose sum is σ = 99325512. Its totient is φ = 32991600.

The previous prime is 66100087. The next prime is 66100109. The reversal of 66100102 is 20100166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66100109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27799 + ... + 30082.

It is an arithmetic number, because the mean of its divisors is an integer number (12415689).

Almost surely, 2^66100102 is an apocalyptic number.

66100102 is a deficient number, since it is larger than the sum of its proper divisors (33225410).

66100102 is a wasteful number, since it uses less digits than its factorization.

66100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58454.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 66100102 is about 8130.1969225843. The cubic root of 66100102 is about 404.3282100729.

Adding to 66100102 its reverse (20100166), we get a palindrome (86200268).

The spelling of 66100102 in words is "sixty-six million, one hundred thousand, one hundred two".