156066861 has 8 divisors (see below), whose sum is σ = 208489120. Its totient is φ = 103844592.

The previous prime is 156066857. The next prime is 156066877. The reversal of 156066861 is 168660651.

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

It is not a de Polignac number, because 156066861 - 2² = 156066857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156066161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48166 + ... + 51303.

It is an arithmetic number, because the mean of its divisors is an integer number (26061140).

Almost surely, 2^156066861 is an apocalyptic number.

It is an amenable number.

156066861 is a deficient number, since it is larger than the sum of its proper divisors (52422259).

156066861 is an equidigital number, since it uses as much as digits as its factorization.

156066861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99995.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 156066861 is about 12492.6722921879. The cubic root of 156066861 is about 538.3981576980.

The spelling of 156066861 in words is "one hundred fifty-six million, sixty-six thousand, eight hundred sixty-one".