1641531467401 has 16 divisors (see below), whose sum is σ = 1986520032000. Its totient is φ = 1324174671360.

The previous prime is 1641531467377. The next prime is 1641531467413. The reversal of 1641531467401 is 1047641351461.

It is a cyclic number.

It is not a de Polignac number, because 1641531467401 - 2⁵ = 1641531467369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1641532467401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1424725 + ... + 2304973.

It is an arithmetic number, because the mean of its divisors is an integer number (124157502000).

Almost surely, 2^{1641531467401} is an apocalyptic number.

It is an amenable number.

1641531467401 is a deficient number, since it is larger than the sum of its proper divisors (344988564599).

1641531467401 is a wasteful number, since it uses less digits than its factorization.

1641531467401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895944.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 1641531467401 in words is "one trillion, six hundred forty-one billion, five hundred thirty-one million, four hundred sixty-seven thousand, four hundred one".