1001995772701 has 64 divisors (see below), whose sum is σ = 1319810526720. Its totient is φ = 737883095040.

The previous prime is 1001995772699. The next prime is 1001995772737. The reversal of 1001995772701 is 1072775991001.

1001995772701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1001995772701 - 2¹ = 1001995772699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001995772101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51235341 + ... + 51254893.

It is an arithmetic number, because the mean of its divisors is an integer number (20622039480).

Almost surely, 2^{1001995772701} is an apocalyptic number.

1001995772701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1001995772701 is a deficient number, since it is larger than the sum of its proper divisors (317814754019).

1001995772701 is a wasteful number, since it uses less digits than its factorization.

1001995772701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20086.

The product of its (nonzero) digits is 277830, while the sum is 49.

The spelling of 1001995772701 in words is "one trillion, one billion, nine hundred ninety-five million, seven hundred seventy-two thousand, seven hundred one".