100572065497 has 2 divisors, whose sum is σ = 100572065498. Its totient is φ = 100572065496.

The previous prime is 100572065491. The next prime is 100572065557. The reversal of 100572065497 is 794560275001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62334609561 + 38237455936 = 249669^2 + 195544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100572065497 is a prime.

It is a super-2 number, since 2×100572065497² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100572065491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50286032748 + 50286032749.

It is an arithmetic number, because the mean of its divisors is an integer number (50286032749).

Almost surely, 2^100572065497 is an apocalyptic number.

It is an amenable number.

100572065497 is a deficient number, since it is larger than the sum of its proper divisors (1).

100572065497 is an equidigital number, since it uses as much as digits as its factorization.

100572065497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 100572065497 in words is "one hundred billion, five hundred seventy-two million, sixty-five thousand, four hundred ninety-seven".