156466773707442 has 32 divisors (see below), whose sum is σ = 341429939138880. Its totient is φ = 47407522821120.

The previous prime is 156466773707441. The next prime is 156466773707459. The reversal of 156466773707442 is 244707377664651.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (156466773707441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165801663 + ... + 166742690.

It is an arithmetic number, because the mean of its divisors is an integer number (10669685598090).

Almost surely, 2^{156466773707442} is an apocalyptic number.

156466773707442 is an abundant number, since it is smaller than the sum of its proper divisors (184963165431438).

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

156466773707442 is a wasteful number, since it uses less digits than its factorization.

156466773707442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332551498.

The product of its (nonzero) digits is 995742720, while the sum is 69.

The spelling of 156466773707442 in words is "one hundred fifty-six trillion, four hundred sixty-six billion, seven hundred seventy-three million, seven hundred seven thousand, four hundred forty-two".