66671156 has 12 divisors (see below), whose sum is σ = 119388192. Its totient is φ = 32560248.

The previous prime is 66671131. The next prime is 66671167. The reversal of 66671156 is 65117666.

It is a hoax number, since the sum of its digits (38) 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, 193640 + ... + 193983.

It is an arithmetic number, because the mean of its divisors is an integer number (9949016).

Almost surely, 2^66671156 is an apocalyptic number.

It is an amenable number.

66671156 is a deficient number, since it is larger than the sum of its proper divisors (52717036).

66671156 is a wasteful number, since it uses less digits than its factorization.

66671156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387670 (or 387668 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 66671156 is about 8165.2407190480. The cubic root of 66671156 is about 405.4892345113.

The spelling of 66671156 in words is "sixty-six million, six hundred seventy-one thousand, one hundred fifty-six".