61066156 has 24 divisors (see below), whose sum is σ = 111472256. Its totient is φ = 29237760.

The previous prime is 61066153. The next prime is 61066163. The reversal of 61066156 is 65166016.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (61066151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9490 + ... + 14566.

Almost surely, 2^61066156 is an apocalyptic number.

It is an amenable number.

61066156 is a deficient number, since it is larger than the sum of its proper divisors (50406100).

61066156 is a wasteful number, since it uses less digits than its factorization.

61066156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5209 (or 5207 counting only the distinct ones).

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

The square root of 61066156 is about 7814.4837321476. The cubic root of 61066156 is about 393.7919744956.

It can be divided in two parts, 610 and 66156, that added together give a palindrome (66766).

The spelling of 61066156 in words is "sixty-one million, sixty-six thousand, one hundred fifty-six".