1551710493601 has 4 divisors (see below), whose sum is σ = 1563928686592. Its totient is φ = 1539492300612.

The previous prime is 1551710493587. The next prime is 1551710493643. The reversal of 1551710493601 is 1063940171551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1551710493601 - 2¹⁷ = 1551710362529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1551710493661) 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 3 ways as a sum of consecutive naturals, for example, 6109096305 + ... + 6109096558.

It is an arithmetic number, because the mean of its divisors is an integer number (390982171648).

Almost surely, 2^{1551710493601} is an apocalyptic number.

It is an amenable number.

1551710493601 is a deficient number, since it is larger than the sum of its proper divisors (12218192991).

1551710493601 is a wasteful number, since it uses less digits than its factorization.

1551710493601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12218192990.

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 1551710493601 in words is "one trillion, five hundred fifty-one billion, seven hundred ten million, four hundred ninety-three thousand, six hundred one".