80723350919555 has 16 divisors (see below), whose sum is σ = 99491048883264. Its totient is φ = 62830170046080.

The previous prime is 80723350919521. The next prime is 80723350919579. The reversal of 80723350919555 is 55591905332708.

It is a de Polignac number, because none of the positive numbers 2^k-80723350919555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7191776 + ... + 14600285.

It is an arithmetic number, because the mean of its divisors is an integer number (6218190555204).

Almost surely, 2^{80723350919555} is an apocalyptic number.

80723350919555 is a deficient number, since it is larger than the sum of its proper divisors (18767697963709).

80723350919555 is a wasteful number, since it uses less digits than its factorization.

80723350919555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21812126.

The product of its (nonzero) digits is 51030000, while the sum is 62.

The spelling of 80723350919555 in words is "eighty trillion, seven hundred twenty-three billion, three hundred fifty million, nine hundred nineteen thousand, five hundred fifty-five".