156073673730 has 32 divisors (see below), whose sum is σ = 403390419264. Its totient is φ = 38418134976.

The previous prime is 156073673719. The next prime is 156073673737. The reversal of 156073673730 is 37376370651.

156073673730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156073673730² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 156073673730.

It is not an unprimeable number, because it can be changed into a prime (156073673737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200094064 + ... + 200094843.

It is an arithmetic number, because the mean of its divisors is an integer number (12605950602).

Almost surely, 2^156073673730 is an apocalyptic number.

156073673730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156073673730 is an abundant number, since it is smaller than the sum of its proper divisors (247316745534).

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

156073673730 is a wasteful number, since it uses less digits than its factorization.

156073673730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400188930.

The product of its (nonzero) digits is 1666980, while the sum is 48.

The spelling of 156073673730 in words is "one hundred fifty-six billion, seventy-three million, six hundred seventy-three thousand, seven hundred thirty".