315531443150551 has 6 divisors (see below), whose sum is σ = 335183920578920. Its totient is φ = 296970770023776.

The previous prime is 315531443150531. The next prime is 315531443150587. The reversal of 315531443150551 is 155051344135513.

It is a happy number.

It is not a de Polignac number, because 315531443150551 - 2¹⁵ = 315531443117783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315531443150531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 545902150491 + ... + 545902151068.

Almost surely, 2^{315531443150551} is an apocalyptic number.

315531443150551 is a deficient number, since it is larger than the sum of its proper divisors (19652477428369).

315531443150551 is a wasteful number, since it uses less digits than its factorization.

315531443150551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091804301593 (or 1091804301576 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 315531443150551 in words is "three hundred fifteen trillion, five hundred thirty-one billion, four hundred forty-three million, one hundred fifty thousand, five hundred fifty-one".