156720201143 has 12 divisors (see below), whose sum is σ = 177066224088. Its totient is φ = 137560043040.

The previous prime is 156720201119. The next prime is 156720201173. The reversal of 156720201143 is 341102027651.

It is not a de Polignac number, because 156720201143 - 2⁸ = 156720200887 is a prime.

It is a super-2 number, since 2×156720201143² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156720201173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8461196 + ... + 8479697.

It is an arithmetic number, because the mean of its divisors is an integer number (14755518674).

Almost surely, 2^156720201143 is an apocalyptic number.

156720201143 is a deficient number, since it is larger than the sum of its proper divisors (20346022945).

156720201143 is a wasteful number, since it uses less digits than its factorization.

156720201143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16940962 (or 16940933 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 156720201143 its reverse (341102027651), we get a palindrome (497822228794).

The spelling of 156720201143 in words is "one hundred fifty-six billion, seven hundred twenty million, two hundred one thousand, one hundred forty-three".