621600132443 has 2 divisors, whose sum is σ = 621600132444. Its totient is φ = 621600132442.

The previous prime is 621600132409. The next prime is 621600132473. The reversal of 621600132443 is 344231006126.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 621600132443 - 2¹⁸ = 621599870299 is a prime.

It is a super-2 number, since 2×621600132443² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (621600132473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310800066221 + 310800066222.

It is an arithmetic number, because the mean of its divisors is an integer number (310800066222).

Almost surely, 2^621600132443 is an apocalyptic number.

621600132443 is a deficient number, since it is larger than the sum of its proper divisors (1).

621600132443 is an equidigital number, since it uses as much as digits as its factorization.

621600132443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 621600132443 its reverse (344231006126), we get a palindrome (965831138569).

The spelling of 621600132443 in words is "six hundred twenty-one billion, six hundred million, one hundred thirty-two thousand, four hundred forty-three".