1015506050101 has 4 divisors (see below), whose sum is σ = 1015514255052. Its totient is φ = 1015497845152.

The previous prime is 1015506050081. The next prime is 1015506050161. The reversal of 1015506050101 is 1010506055101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 835165687876 + 180340362225 = 913874^2 + 424665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015506050101 - 2⁹ = 1015506049589 is a prime.

It is a super-2 number, since 2×1015506050101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015506050161) 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 3 ways as a sum of consecutive naturals, for example, 3913936 + ... + 4165321.

It is an arithmetic number, because the mean of its divisors is an integer number (253878563763).

Almost surely, 2^{1015506050101} is an apocalyptic number.

It is an amenable number.

1015506050101 is a deficient number, since it is larger than the sum of its proper divisors (8204951).

1015506050101 is an equidigital number, since it uses as much as digits as its factorization.

1015506050101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204950.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 1015506050101 in words is "one trillion, fifteen billion, five hundred six million, fifty thousand, one hundred one".