16461637001 has 2 divisors, whose sum is σ = 16461637002. Its totient is φ = 16461637000.

The previous prime is 16461636953. The next prime is 16461637009. The reversal of 16461637001 is 10073616461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13311621376 + 3150015625 = 115376^2 + 56125^2 .

It is a cyclic number.

It is not a de Polignac number, because 16461637001 - 2¹⁰ = 16461635977 is a prime.

It is not a weakly prime, because it can be changed into another prime (16461637009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8230818500 + 8230818501.

It is an arithmetic number, because the mean of its divisors is an integer number (8230818501).

Almost surely, 2^16461637001 is an apocalyptic number.

It is an amenable number.

16461637001 is a deficient number, since it is larger than the sum of its proper divisors (1).

16461637001 is an equidigital number, since it uses as much as digits as its factorization.

16461637001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 16461637001 in words is "sixteen billion, four hundred sixty-one million, six hundred thirty-seven thousand, one".