1401701601647 has 16 divisors (see below), whose sum is σ = 1485946425600. Its totient is φ = 1317656537088.

The previous prime is 1401701601617. The next prime is 1401701601649. The reversal of 1401701601647 is 7461061071041.

It is not a de Polignac number, because 1401701601647 - 2¹⁰ = 1401701600623 is a prime.

It is a super-2 number, since 2×1401701601647² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401701601647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401701601649) 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, 96415763 + ... + 96430299.

It is an arithmetic number, because the mean of its divisors is an integer number (92871651600).

Almost surely, 2^{1401701601647} is an apocalyptic number.

1401701601647 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1401701601647 is a deficient number, since it is larger than the sum of its proper divisors (84244823953).

1401701601647 is a wasteful number, since it uses less digits than its factorization.

1401701601647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21010.

The product of its (nonzero) digits is 28224, while the sum is 38.

Adding to 1401701601647 its reverse (7461061071041), we get a palindrome (8862762672688).

The spelling of 1401701601647 in words is "one trillion, four hundred one billion, seven hundred one million, six hundred one thousand, six hundred forty-seven".