127205235180465 has 32 divisors (see below), whose sum is σ = 219189881527680. Its totient is φ = 62622551126016.

The previous prime is 127205235180451. The next prime is 127205235180467. The reversal of 127205235180465 is 564081532502721.

It is a happy number.

It is not a de Polignac number, because 127205235180465 - 2¹⁴ = 127205235164081 is a prime.

It is a super-2 number, since 2×127205235180465² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127205235180467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305200 + ... + 15953169.

It is an arithmetic number, because the mean of its divisors is an integer number (6849683797740).

Almost surely, 2^{127205235180465} is an apocalyptic number.

127205235180465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127205235180465 is a deficient number, since it is larger than the sum of its proper divisors (91984646347215).

127205235180465 is a wasteful number, since it uses less digits than its factorization.

127205235180465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16298513.

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 127205235180465 in words is "one hundred twenty-seven trillion, two hundred five billion, two hundred thirty-five million, one hundred eighty thousand, four hundred sixty-five".