315220556153663 has 4 divisors (see below), whose sum is σ = 318166542659880. Its totient is φ = 312274569647448.

The previous prime is 315220556153617. The next prime is 315220556153729. The reversal of 315220556153663 is 366351655022513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315220556153663 - 2²² = 315220551959359 is a prime.

It is a super-3 number, since 3×315220556153663³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315220556653663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472993252948 + ... + 1472993253161.

It is an arithmetic number, because the mean of its divisors is an integer number (79541635664970).

Almost surely, 2^{315220556153663} is an apocalyptic number.

315220556153663 is a deficient number, since it is larger than the sum of its proper divisors (2945986506217).

315220556153663 is a wasteful number, since it uses less digits than its factorization.

315220556153663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945986506216.

The product of its (nonzero) digits is 14580000, while the sum is 53.

The spelling of 315220556153663 in words is "three hundred fifteen trillion, two hundred twenty billion, five hundred fifty-six million, one hundred fifty-three thousand, six hundred sixty-three".