206020123761 has 8 divisors (see below), whose sum is σ = 282117647104. Its totient is φ = 133634674800.

The previous prime is 206020123759. The next prime is 206020123763. The reversal of 206020123761 is 167321020602.

It is an interprime number because it is at equal distance from previous prime (206020123759) and next prime (206020123763).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206020123761 - 2¹ = 206020123759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206020123763) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 928018465 + ... + 928018686.

It is an arithmetic number, because the mean of its divisors is an integer number (35264705888).

Almost surely, 2^206020123761 is an apocalyptic number.

It is an amenable number.

206020123761 is a deficient number, since it is larger than the sum of its proper divisors (76097523343).

206020123761 is a wasteful number, since it uses less digits than its factorization.

206020123761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856037191.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 206020123761 in words is "two hundred six billion, twenty million, one hundred twenty-three thousand, seven hundred sixty-one".