1010506665601 has 4 divisors (see below), whose sum is σ = 1012108103104. Its totient is φ = 1008905228100.

The previous prime is 1010506665569. The next prime is 1010506665629. The reversal of 1010506665601 is 1065666050101.

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 1010506665601 - 2⁵ = 1010506665569 is a prime.

It is a super-2 number, since 2×1010506665601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010506665101) 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, 800717805 + ... + 800719066.

It is an arithmetic number, because the mean of its divisors is an integer number (253027025776).

Almost surely, 2^{1010506665601} is an apocalyptic number.

It is an amenable number.

1010506665601 is a deficient number, since it is larger than the sum of its proper divisors (1601437503).

1010506665601 is an equidigital number, since it uses as much as digits as its factorization.

1010506665601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601437502.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 1010506665601 in words is "one trillion, ten billion, five hundred six million, six hundred sixty-five thousand, six hundred one".