66156045 has 8 divisors (see below), whose sum is σ = 105849696. Its totient is φ = 35283216.

The previous prime is 66156029. The next prime is 66156071. The reversal of 66156045 is 54065166.

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

It is not a de Polignac number, because 66156045 - 2⁴ = 66156029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66155997 and 66156015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2205187 + ... + 2205216.

It is an arithmetic number, because the mean of its divisors is an integer number (13231212).

Almost surely, 2^66156045 is an apocalyptic number.

It is an amenable number.

66156045 is a deficient number, since it is larger than the sum of its proper divisors (39693651).

66156045 is a wasteful number, since it uses less digits than its factorization.

66156045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410411.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 66156045 is about 8133.6366405194. The cubic root of 66156045 is about 404.4422439607.

The spelling of 66156045 in words is "sixty-six million, one hundred fifty-six thousand, forty-five".