6660100156 has 12 divisors (see below), whose sum is σ = 12161922192. Its totient is φ = 3185265248.

The previous prime is 6660100121. The next prime is 6660100199. The reversal of 6660100156 is 6510010666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36196105 + ... + 36196288.

It is an arithmetic number, because the mean of its divisors is an integer number (1013493516).

Almost surely, 2^6660100156 is an apocalyptic number.

It is an amenable number.

6660100156 is a deficient number, since it is larger than the sum of its proper divisors (5501822036).

6660100156 is a wasteful number, since it uses less digits than its factorization.

6660100156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72392420 (or 72392418 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 6660100156 is about 81609.4366847364. The cubic root of 6660100156 is about 1881.4539224559.

The spelling of 6660100156 in words is "six billion, six hundred sixty million, one hundred thousand, one hundred fifty-six".