215232487650554 has 24 divisors (see below), whose sum is σ = 356849283581280. Its totient is φ = 97286396125160.

The previous prime is 215232487650553. The next prime is 215232487650559. The reversal of 215232487650554 is 455056784232512.

It is a junction number, because it is equal to n+sod(n) for n = 215232487650493 and 215232487650502.

It is not an unprimeable number, because it can be changed into a prime (215232487650553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2484287534 + ... + 2484374169.

It is an arithmetic number, because the mean of its divisors is an integer number (14868720149220).

Almost surely, 2^{215232487650554} is an apocalyptic number.

215232487650554 is a deficient number, since it is larger than the sum of its proper divisors (141616795930726).

215232487650554 is a wasteful number, since it uses less digits than its factorization.

215232487650554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968661906 (or 4968661895 counting only the distinct ones).

The product of its (nonzero) digits is 80640000, while the sum is 59.

The spelling of 215232487650554 in words is "two hundred fifteen trillion, two hundred thirty-two billion, four hundred eighty-seven million, six hundred fifty thousand, five hundred fifty-four".