206553241515 has 16 divisors (see below), whose sum is σ = 330738075648. Its totient is φ = 110077432416.

The previous prime is 206553241513. The next prime is 206553241553. The reversal of 206553241515 is 515142355602.

It is not a de Polignac number, because 206553241515 - 2¹ = 206553241513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206553241513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5248267 + ... + 5287476.

It is an arithmetic number, because the mean of its divisors is an integer number (20671129728).

Almost surely, 2^206553241515 is an apocalyptic number.

206553241515 is a deficient number, since it is larger than the sum of its proper divisors (124184834133).

206553241515 is a wasteful number, since it uses less digits than its factorization.

206553241515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10537058.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 206553241515 in words is "two hundred six billion, five hundred fifty-three million, two hundred forty-one thousand, five hundred fifteen".