206455652431 has 16 divisors (see below), whose sum is σ = 252991088640. Its totient is φ = 164444192640.

The previous prime is 206455652419. The next prime is 206455652443. The reversal of 206455652431 is 134256554602.

It is an interprime number because it is at equal distance from previous prime (206455652419) and next prime (206455652443).

It is not a de Polignac number, because 206455652431 - 2¹¹ = 206455650383 is a prime.

It is a super-2 number, since 2×206455652431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206452652431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10971115 + ... + 10989916.

It is an arithmetic number, because the mean of its divisors is an integer number (15811943040).

Almost surely, 2^206455652431 is an apocalyptic number.

206455652431 is a deficient number, since it is larger than the sum of its proper divisors (46535436209).

206455652431 is a wasteful number, since it uses less digits than its factorization.

206455652431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21961134.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 206455652431 in words is "two hundred six billion, four hundred fifty-five million, six hundred fifty-two thousand, four hundred thirty-one".