41643432766551 has 32 divisors (see below), whose sum is σ = 70913872221696. Its totient is φ = 21105319104000.

The previous prime is 41643432766549. The next prime is 41643432766687. The reversal of 41643432766551 is 15566723434614.

It is not a de Polignac number, because 41643432766551 - 2¹ = 41643432766549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41643432766491 and 41643432766500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41643432766951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2198461270 + ... + 2198480211.

It is an arithmetic number, because the mean of its divisors is an integer number (2216058506928).

Almost surely, 2^{41643432766551} is an apocalyptic number.

41643432766551 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

41643432766551 is a deficient number, since it is larger than the sum of its proper divisors (29270439455145).

41643432766551 is a wasteful number, since it uses less digits than its factorization.

41643432766551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396941543.

The product of its digits is 43545600, while the sum is 57.

The spelling of 41643432766551 in words is "forty-one trillion, six hundred forty-three billion, four hundred thirty-two million, seven hundred sixty-six thousand, five hundred fifty-one".