15554480275479 has 16 divisors (see below), whose sum is σ = 20993497709184. Its totient is φ = 10242609602400.

The previous prime is 15554480275441. The next prime is 15554480275487. The reversal of 15554480275479 is 97457208445551.

It is not a de Polignac number, because 15554480275479 - 2⁹ = 15554480274967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15554480275379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5215017 + ... + 7635794.

It is an arithmetic number, because the mean of its divisors is an integer number (1312093606824).

Almost surely, 2^{15554480275479} is an apocalyptic number.

15554480275479 is a deficient number, since it is larger than the sum of its proper divisors (5439017433705).

15554480275479 is a wasteful number, since it uses less digits than its factorization.

15554480275479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12855758.

The product of its (nonzero) digits is 282240000, while the sum is 66.

The spelling of 15554480275479 in words is "fifteen trillion, five hundred fifty-four billion, four hundred eighty million, two hundred seventy-five thousand, four hundred seventy-nine".