206040012604500 has 96 divisors (see below), whose sum is σ = 619342985124864. Its totient is φ = 53171616144000.

The previous prime is 206040012604487. The next prime is 206040012604513. The reversal of 206040012604500 is 5406210040602.

It is an interprime number because it is at equal distance from previous prime (206040012604487) and next prime (206040012604513).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2215437507 + ... + 2215530506.

It is an arithmetic number, because the mean of its divisors is an integer number (6451489428384).

Almost surely, 2^{206040012604500} is an apocalyptic number.

206040012604500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206040012604500 is an abundant number, since it is smaller than the sum of its proper divisors (413302972520364).

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

206040012604500 is a wasteful number, since it uses less digits than its factorization.

206040012604500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430968066 (or 4430968054 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 206040012604500 in words is "two hundred six trillion, forty billion, twelve million, six hundred four thousand, five hundred".