431646051055 has 16 divisors (see below), whose sum is σ = 518669199360. Its totient is φ = 344854474272.

The previous prime is 431646051037. The next prime is 431646051059. The reversal of 431646051055 is 550150646134.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 431646051055 - 2¹⁷ = 431645919983 is a prime.

It is a super-2 number, since 2×431646051055² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431646050999 and 431646051017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431646051059) 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, 15191572 + ... + 15219958.

It is an arithmetic number, because the mean of its divisors is an integer number (32416824960).

Almost surely, 2^431646051055 is an apocalyptic number.

431646051055 is a deficient number, since it is larger than the sum of its proper divisors (87023148305).

431646051055 is a wasteful number, since it uses less digits than its factorization.

431646051055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32358.

The product of its (nonzero) digits is 216000, while the sum is 40.

Adding to 431646051055 its reverse (550150646134), we get a palindrome (981796697189).

The spelling of 431646051055 in words is "four hundred thirty-one billion, six hundred forty-six million, fifty-one thousand, fifty-five".