156972383015044 has 27 divisors (see below), whose sum is σ = 281566969466853. Its totient is φ = 76571392999200.

The previous prime is 156972383015039. The next prime is 156972383015069. The reversal of 156972383015044 is 440510383279651.

The square root of 156972383015044 is 12528862.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7563809056644 + 149408573958400 = 2750238^2 + 12223280^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156972383015044.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1027290289 + ... + 1027443079.

It is a 1-persistent number, because it is pandigital, but 2⋅156972383015044 = 313944766030088 is not.

Almost surely, 2^{156972383015044} is an apocalyptic number.

156972383015044 is the 12528862-nd square number.

It is an amenable number.

156972383015044 is a deficient number, since it is larger than the sum of its proper divisors (124594586451809).

156972383015044 is an frugal number, since it uses more digits than its factorization.

156972383015044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305668 (or 152834 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 156972383015044 in words is "one hundred fifty-six trillion, nine hundred seventy-two billion, three hundred eighty-three million, fifteen thousand, forty-four".