15113403555461 has 2 divisors, whose sum is σ = 15113403555462. Its totient is φ = 15113403555460.

The previous prime is 15113403555421. The next prime is 15113403555463. The reversal of 15113403555461 is 16455530431151.

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., 13150305532225 + 1963098023236 = 3626335^2 + 1401106^2 .

It is a cyclic number.

It is not a de Polignac number, because 15113403555461 - 2²² = 15113399361157 is a prime.

It is a super-2 number, since 2×15113403555461² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 15113403555463, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15113403555463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7556701777730 + 7556701777731.

It is an arithmetic number, because the mean of its divisors is an integer number (7556701777731).

Almost surely, 2^{15113403555461} is an apocalyptic number.

It is an amenable number.

15113403555461 is a deficient number, since it is larger than the sum of its proper divisors (1).

15113403555461 is an equidigital number, since it uses as much as digits as its factorization.

15113403555461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 15113403555461 in words is "fifteen trillion, one hundred thirteen billion, four hundred three million, five hundred fifty-five thousand, four hundred sixty-one".