3551415555451 has 2 divisors, whose sum is σ = 3551415555452. Its totient is φ = 3551415555450.

The previous prime is 3551415555449. The next prime is 3551415555473. The reversal of 3551415555451 is 1545555141553.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3551415555451 - 2¹ = 3551415555449 is a prime.

It is a super-2 number, since 2×3551415555451² (a number of 26 digits) contains 22 as substring.

Together with 3551415555449, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3551415555395 and 3551415555404.

It is not a weakly prime, because it can be changed into another prime (3551415555491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775707777725 + 1775707777726.

It is an arithmetic number, because the mean of its divisors is an integer number (1775707777726).

Almost surely, 2^{3551415555451} is an apocalyptic number.

3551415555451 is a deficient number, since it is larger than the sum of its proper divisors (1).

3551415555451 is an equidigital number, since it uses as much as digits as its factorization.

3551415555451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3750000, while the sum is 49.

The spelling of 3551415555451 in words is "three trillion, five hundred fifty-one billion, four hundred fifteen million, five hundred fifty-five thousand, four hundred fifty-one".