100297550785 has 16 divisors (see below), whose sum is σ = 121646978640. Its totient is φ = 79380725760.

The previous prime is 100297550719. The next prime is 100297550789. The reversal of 100297550785 is 587055792001.

It can be written as a sum of positive squares in 8 ways, for example, as 42518852401 + 57778698384 = 206201^2 + 240372^2 .

It is not a de Polignac number, because 100297550785 - 2⁹ = 100297550273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100297550789) 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 in 15 ways as a sum of consecutive naturals, for example, 141601 + ... + 469729.

It is an arithmetic number, because the mean of its divisors is an integer number (7602936165).

Almost surely, 2^100297550785 is an apocalyptic number.

It is an amenable number.

100297550785 is a deficient number, since it is larger than the sum of its proper divisors (21349427855).

100297550785 is a wasteful number, since it uses less digits than its factorization.

100297550785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328788.

The product of its (nonzero) digits is 882000, while the sum is 49.

The spelling of 100297550785 in words is "one hundred billion, two hundred ninety-seven million, five hundred fifty thousand, seven hundred eighty-five".