101620330553 has 12 divisors (see below), whose sum is σ = 119359094400. Its totient is φ = 86257474632.

The previous prime is 101620330519. The next prime is 101620330573. The reversal of 101620330553 is 355033026101.

It is not a de Polignac number, because 101620330553 - 2⁸ = 101620330297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101620330573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10062353 + ... + 10072446.

It is an arithmetic number, because the mean of its divisors is an integer number (9946591200).

Almost surely, 2^101620330553 is an apocalyptic number.

It is an amenable number.

101620330553 is a deficient number, since it is larger than the sum of its proper divisors (17738763847).

101620330553 is a wasteful number, since it uses less digits than its factorization.

101620330553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20134916 (or 20134909 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 101620330553 its reverse (355033026101), we get a palindrome (456653356654).

The spelling of 101620330553 in words is "one hundred one billion, six hundred twenty million, three hundred thirty thousand, five hundred fifty-three".