156512712546401 has 4 divisors (see below), whose sum is σ = 156523289888532. Its totient is φ = 156502135204272.

The previous prime is 156512712546361. The next prime is 156512712546457. The reversal of 156512712546401 is 104645217215651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121014960462400 + 35497752084001 = 11000680^2 + 5957999^2 .

It is a cyclic number.

It is not a de Polignac number, because 156512712546401 - 2¹⁰ = 156512712545377 is a prime.

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 156512712546401.

It is not an unprimeable number, because it can be changed into a prime (156512712546101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5288648870 + ... + 5288678463.

It is an arithmetic number, because the mean of its divisors is an integer number (39130822472133).

Almost surely, 2^{156512712546401} is an apocalyptic number.

It is an amenable number.

156512712546401 is a deficient number, since it is larger than the sum of its proper divisors (10577342131).

156512712546401 is a wasteful number, since it uses less digits than its factorization.

156512712546401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10577342130.

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 156512712546401 in words is "one hundred fifty-six trillion, five hundred twelve billion, seven hundred twelve million, five hundred forty-six thousand, four hundred one".