12206561534 has 8 divisors (see below), whose sum is σ = 18368717328. Its totient is φ = 6083655760.

The previous prime is 12206561531. The next prime is 12206561537. The reversal of 12206561534 is 43516560221.

It is an interprime number because it is at equal distance from previous prime (12206561531) and next prime (12206561537).

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

It is a junction number, because it is equal to n+sod(n) for n = 12206561494 and 12206561503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12206561531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9811727 + ... + 9812970.

It is an arithmetic number, because the mean of its divisors is an integer number (2296089666).

Almost surely, 2^12206561534 is an apocalyptic number.

12206561534 is a deficient number, since it is larger than the sum of its proper divisors (6162155794).

12206561534 is a wasteful number, since it uses less digits than its factorization.

12206561534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19625010.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12206561534 in words is "twelve billion, two hundred six million, five hundred sixty-one thousand, five hundred thirty-four".