20154430055483 has 2 divisors, whose sum is σ = 20154430055484. Its totient is φ = 20154430055482.

The previous prime is 20154430055399. The next prime is 20154430055509. The reversal of 20154430055483 is 38455003445102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20154430055483 - 2¹² = 20154430051387 is a prime.

It is a super-2 number, since 2×20154430055483² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20154430054483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077215027741 + 10077215027742.

It is an arithmetic number, because the mean of its divisors is an integer number (10077215027742).

Almost surely, 2^{20154430055483} is an apocalyptic number.

20154430055483 is a deficient number, since it is larger than the sum of its proper divisors (1).

20154430055483 is an equidigital number, since it uses as much as digits as its factorization.

20154430055483 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 20154430055483 in words is "twenty trillion, one hundred fifty-four billion, four hundred thirty million, fifty-five thousand, four hundred eighty-three".