156144666 has 16 divisors (see below), whose sum is σ = 314161344. Its totient is φ = 51736224.

The previous prime is 156144661. The next prime is 156144673. The reversal of 156144666 is 666441651.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (156144661) 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, 76915 + ... + 78918.

It is an arithmetic number, because the mean of its divisors is an integer number (19635084).

Almost surely, 2^156144666 is an apocalyptic number.

156144666 is an abundant number, since it is smaller than the sum of its proper divisors (158016678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156144666 is a wasteful number, since it uses less digits than its factorization.

156144666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156005.

The product of its digits is 103680, while the sum is 39.

The square root of 156144666 is about 12495.7859296644. The cubic root of 156144666 is about 538.4876131811.

The spelling of 156144666 in words is "one hundred fifty-six million, one hundred forty-four thousand, six hundred sixty-six".