1401162464081 has 2 divisors, whose sum is σ = 1401162464082. Its totient is φ = 1401162464080.

The previous prime is 1401162464071. The next prime is 1401162464111. The reversal of 1401162464081 is 1804642611041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 916490302225 + 484672161856 = 957335^2 + 696184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401162464081 is a prime.

It is a super-2 number, since 2×1401162464081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1401162464041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700581232040 + 700581232041.

It is an arithmetic number, because the mean of its divisors is an integer number (700581232041).

Almost surely, 2^{1401162464081} is an apocalyptic number.

It is an amenable number.

1401162464081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401162464081 is an equidigital number, since it uses as much as digits as its factorization.

1401162464081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 1401162464081 in words is "one trillion, four hundred one billion, one hundred sixty-two million, four hundred sixty-four thousand, eighty-one".