200401646231561 has 8 divisors (see below), whose sum is σ = 211027550253600. Its totient is φ = 189783587105280.

The previous prime is 200401646231531. The next prime is 200401646231639. The reversal of 200401646231561 is 165132646104002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200401646231561 - 2¹⁸ = 200401645969417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200401646231531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1961171495 + ... + 1961273676.

It is an arithmetic number, because the mean of its divisors is an integer number (26378443781700).

Almost surely, 2^{200401646231561} is an apocalyptic number.

It is an amenable number.

200401646231561 is a deficient number, since it is larger than the sum of its proper divisors (10625904022039).

200401646231561 is a wasteful number, since it uses less digits than its factorization.

200401646231561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922447879.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 200401646231561 in words is "two hundred trillion, four hundred one billion, six hundred forty-six million, two hundred thirty-one thousand, five hundred sixty-one".