156666435044 has 24 divisors (see below), whose sum is σ = 313406267328. Its totient is φ = 67127029920.

The previous prime is 156666435043. The next prime is 156666435061. The reversal of 156666435044 is 440534666651.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 156666434983 and 156666435001.

It is not an unprimeable number, because it can be changed into a prime (156666435041) 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, 533267 + ... + 773114.

It is an arithmetic number, because the mean of its divisors is an integer number (13058594472).

Almost surely, 2^156666435044 is an apocalyptic number.

156666435044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

156666435044 is an abundant number, since it is smaller than the sum of its proper divisors (156739832284).

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

156666435044 is a wasteful number, since it uses less digits than its factorization.

156666435044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310675 (or 1310673 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 156666435044 in words is "one hundred fifty-six billion, six hundred sixty-six million, four hundred thirty-five thousand, forty-four".