15554480275441 has 2 divisors, whose sum is σ = 15554480275442. Its totient is φ = 15554480275440.

The previous prime is 15554480275379. The next prime is 15554480275487. The reversal of 15554480275441 is 14457208445551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8223680348416 + 7330799927025 = 2867696^2 + 2707545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15554480275441 is a prime.

It is not a weakly prime, because it can be changed into another prime (15554480275141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7777240137720 + 7777240137721.

It is an arithmetic number, because the mean of its divisors is an integer number (7777240137721).

Almost surely, 2^{15554480275441} is an apocalyptic number.

It is an amenable number.

15554480275441 is a deficient number, since it is larger than the sum of its proper divisors (1).

15554480275441 is an equidigital number, since it uses as much as digits as its factorization.

15554480275441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920000, while the sum is 55.

The spelling of 15554480275441 in words is "fifteen trillion, five hundred fifty-four billion, four hundred eighty million, two hundred seventy-five thousand, four hundred forty-one".