1001409650591 has 16 divisors (see below), whose sum is σ = 1148935670784. Its totient is φ = 855001166784.

The previous prime is 1001409650557. The next prime is 1001409650597. The reversal of 1001409650591 is 1950569041001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001409650591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001409650597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23880755 + ... + 23922651.

It is an arithmetic number, because the mean of its divisors is an integer number (71808479424).

Almost surely, 2^{1001409650591} is an apocalyptic number.

1001409650591 is a deficient number, since it is larger than the sum of its proper divisors (147526020193).

1001409650591 is a wasteful number, since it uses less digits than its factorization.

1001409650591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55150.

The product of its (nonzero) digits is 48600, while the sum is 41.

The spelling of 1001409650591 in words is "one trillion, one billion, four hundred nine million, six hundred fifty thousand, five hundred ninety-one".