66155156 has 12 divisors (see below), whose sum is σ = 118464192. Its totient is φ = 32308248.

The previous prime is 66155137. The next prime is 66155191. The reversal of 66155156 is 65155166.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 192140 + ... + 192483.

It is an arithmetic number, because the mean of its divisors is an integer number (9872016).

Almost surely, 2^66155156 is an apocalyptic number.

It is an amenable number.

66155156 is a deficient number, since it is larger than the sum of its proper divisors (52309036).

66155156 is a wasteful number, since it uses less digits than its factorization.

66155156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384670 (or 384668 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

The square root of 66155156 is about 8133.5819907345. The cubic root of 66155156 is about 404.4404323310.

The spelling of 66155156 in words is "sixty-six million, one hundred fifty-five thousand, one hundred fifty-six".