206025404560 has 40 divisors (see below), whose sum is σ = 482780814336. Its totient is φ = 81761258880.

The previous prime is 206025404539. The next prime is 206025404567. The reversal of 206025404560 is 65404520602.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×206025404560² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206025404567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10128886 + ... + 10149205.

Almost surely, 2^206025404560 is an apocalyptic number.

206025404560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206025404560 is an abundant number, since it is smaller than the sum of its proper divisors (276755409776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206025404560 is a wasteful number, since it uses less digits than its factorization.

206025404560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20278231 (or 20278225 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 206025404560 in words is "two hundred six billion, twenty-five million, four hundred four thousand, five hundred sixty".