4211651520401 has 4 divisors (see below), whose sum is σ = 4535624714292. Its totient is φ = 3887678326512.

The previous prime is 4211651520371. The next prime is 4211651520451. The reversal of 4211651520401 is 1040251561124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1703419132801 + 2508232387600 = 1305151^2 + 1583740^2 .

It is a cyclic number.

It is not a de Polignac number, because 4211651520401 - 2²² = 4211647326097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4211651520451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161986596926 + ... + 161986596951.

It is an arithmetic number, because the mean of its divisors is an integer number (1133906178573).

Almost surely, 2^{4211651520401} is an apocalyptic number.

It is an amenable number.

4211651520401 is a deficient number, since it is larger than the sum of its proper divisors (323973193891).

4211651520401 is a wasteful number, since it uses less digits than its factorization.

4211651520401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323973193890.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 4211651520401 in words is "four trillion, two hundred eleven billion, six hundred fifty-one million, five hundred twenty thousand, four hundred one".