3551641107401 has 4 divisors (see below), whose sum is σ = 3560324826900. Its totient is φ = 3542957387904.

The previous prime is 3551641107373. The next prime is 3551641107433. The reversal of 3551641107401 is 1047011461553.

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 2309807238025 + 1241833869376 = 1519805^2 + 1114376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3551641107401 is a prime.

It is a super-2 number, since 2×3551641107401² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3551641107481) 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, 4341859136 + ... + 4341859953.

It is an arithmetic number, because the mean of its divisors is an integer number (890081206725).

Almost surely, 2^{3551641107401} is an apocalyptic number.

It is an amenable number.

3551641107401 is a deficient number, since it is larger than the sum of its proper divisors (8683719499).

3551641107401 is an equidigital number, since it uses as much as digits as its factorization.

3551641107401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8683719498.

The product of its (nonzero) digits is 50400, while the sum is 38.

Adding to 3551641107401 its reverse (1047011461553), we get a palindrome (4598652568954).

The spelling of 3551641107401 in words is "three trillion, five hundred fifty-one billion, six hundred forty-one million, one hundred seven thousand, four hundred one".