80648238121665 has 64 divisors (see below), whose sum is σ = 129617337459456. Its totient is φ = 42819535429632.

The previous prime is 80648238121643. The next prime is 80648238121681. The reversal of 80648238121665 is 56612183284608.

It is not a de Polignac number, because 80648238121665 - 2¹⁵ = 80648238088897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80648238121599 and 80648238121608.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7154100469 + ... + 7154111741.

It is an arithmetic number, because the mean of its divisors is an integer number (2025270897804).

Almost surely, 2^{80648238121665} is an apocalyptic number.

It is an amenable number.

80648238121665 is a deficient number, since it is larger than the sum of its proper divisors (48969099337791).

80648238121665 is a wasteful number, since it uses less digits than its factorization.

80648238121665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14018.

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 80648238121665 in words is "eighty trillion, six hundred forty-eight billion, two hundred thirty-eight million, one hundred twenty-one thousand, six hundred sixty-five".