2355535621651 has 2 divisors, whose sum is σ = 2355535621652. Its totient is φ = 2355535621650.

The previous prime is 2355535621631. The next prime is 2355535621717. The reversal of 2355535621651 is 1561265355532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2355535621651 - 2²⁷ = 2355401403923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2355535621595 and 2355535621604.

It is not a weakly prime, because it can be changed into another prime (2355535621631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177767810825 + 1177767810826.

It is an arithmetic number, because the mean of its divisors is an integer number (1177767810826).

Almost surely, 2^{2355535621651} is an apocalyptic number.

2355535621651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2355535621651 is an equidigital number, since it uses as much as digits as its factorization.

2355535621651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050000, while the sum is 49.

The spelling of 2355535621651 in words is "two trillion, three hundred fifty-five billion, five hundred thirty-five million, six hundred twenty-one thousand, six hundred fifty-one".