206143151634652 has 6 divisors (see below), whose sum is σ = 360750515360648. Its totient is φ = 103071575817324.

The previous prime is 206143151634649. The next prime is 206143151634671. The reversal of 206143151634652 is 256436151341602.

It is a happy number.

It is a super-2 number, since 2×206143151634652² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206143151634596 and 206143151634605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25767893954328 + ... + 25767893954335.

Almost surely, 2^{206143151634652} is an apocalyptic number.

It is an amenable number.

206143151634652 is a deficient number, since it is larger than the sum of its proper divisors (154607363725996).

206143151634652 is a wasteful number, since it uses less digits than its factorization.

206143151634652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51535787908667 (or 51535787908665 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 206143151634652 in words is "two hundred six trillion, one hundred forty-three billion, one hundred fifty-one million, six hundred thirty-four thousand, six hundred fifty-two".