80243785264155 has 16 divisors (see below), whose sum is σ = 128391119030304. Its totient is φ = 42796331271680.

The previous prime is 80243785264141. The next prime is 80243785264157. The reversal of 80243785264155 is 55146258734208.

It is a happy number.

It is not a de Polignac number, because 80243785264155 - 2²⁰ = 80243784215579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80243785264157) 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, 20259726 + ... + 23894435.

It is an arithmetic number, because the mean of its divisors is an integer number (8024444939394).

Almost surely, 2^{80243785264155} is an apocalyptic number.

80243785264155 is a deficient number, since it is larger than the sum of its proper divisors (48147333766149).

80243785264155 is a wasteful number, since it uses less digits than its factorization.

80243785264155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44275326.

The product of its (nonzero) digits is 64512000, while the sum is 60.

The spelling of 80243785264155 in words is "eighty trillion, two hundred forty-three billion, seven hundred eighty-five million, two hundred sixty-four thousand, one hundred fifty-five".