1401001551001 has 16 divisors (see below), whose sum is σ = 1541211078400. Its totient is φ = 1265639411520.

The previous prime is 1401001550983. The next prime is 1401001551007. The reversal of 1401001551001 is 1001551001041.

It is a cyclic number.

It is not a de Polignac number, because 1401001551001 - 2⁹ = 1401001550489 is a prime.

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 1401001551001.

It is not an unprimeable number, because it can be changed into a prime (1401001551007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4281165 + ... + 4596778.

It is an arithmetic number, because the mean of its divisors is an integer number (96325692400).

Almost surely, 2^{1401001551001} is an apocalyptic number.

It is an amenable number.

1401001551001 is a deficient number, since it is larger than the sum of its proper divisors (140209527399).

1401001551001 is a wasteful number, since it uses less digits than its factorization.

1401001551001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8878216.

The product of its (nonzero) digits is 100, while the sum is 19.

Adding to 1401001551001 its reverse (1001551001041), we get a palindrome (2402552552042).

The spelling of 1401001551001 in words is "one trillion, four hundred one billion, one million, five hundred fifty-one thousand, one".