15980465357 has 2 divisors, whose sum is σ = 15980465358. Its totient is φ = 15980465356.

The previous prime is 15980465233. The next prime is 15980465377. The reversal of 15980465357 is 75356408951.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14791181161 + 1189284196 = 121619^2 + 34486^2 .

It is a cyclic number.

It is not a de Polignac number, because 15980465357 - 2¹⁰ = 15980464333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15980465299 and 15980465308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15980465377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7990232678 + 7990232679.

It is an arithmetic number, because the mean of its divisors is an integer number (7990232679).

Almost surely, 2^15980465357 is an apocalyptic number.

It is an amenable number.

15980465357 is a deficient number, since it is larger than the sum of its proper divisors (1).

15980465357 is an equidigital number, since it uses as much as digits as its factorization.

15980465357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 15980465357 in words is "fifteen billion, nine hundred eighty million, four hundred sixty-five thousand, three hundred fifty-seven".