100520065057 has 4 divisors (see below), whose sum is σ = 100665536176. Its totient is φ = 100374593940.

The previous prime is 100520065027. The next prime is 100520065081. The reversal of 100520065057 is 750560025001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100520065057 - 2¹⁵ = 100520032289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100520065027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72734523 + ... + 72735904.

It is an arithmetic number, because the mean of its divisors is an integer number (25166384044).

Almost surely, 2^100520065057 is an apocalyptic number.

It is an amenable number.

100520065057 is a deficient number, since it is larger than the sum of its proper divisors (145471119).

100520065057 is an equidigital number, since it uses as much as digits as its factorization.

100520065057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145471118.

The product of its (nonzero) digits is 10500, while the sum is 31.

The spelling of 100520065057 in words is "one hundred billion, five hundred twenty million, sixty-five thousand, fifty-seven".