3641663225451 has 4 divisors (see below), whose sum is σ = 4855550967272. Its totient is φ = 2427775483632.

The previous prime is 3641663225437. The next prime is 3641663225461. The reversal of 3641663225451 is 1545223661463.

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

It is not a de Polignac number, because 3641663225451 - 2¹⁰ = 3641663224427 is a prime.

It is a super-2 number, since 2×3641663225451² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3641663225451.

It is not an unprimeable number, because it can be changed into a prime (3641663225411) 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, 606943870906 + ... + 606943870911.

It is an arithmetic number, because the mean of its divisors is an integer number (1213887741818).

Almost surely, 2^{3641663225451} is an apocalyptic number.

3641663225451 is a deficient number, since it is larger than the sum of its proper divisors (1213887741821).

3641663225451 is a wasteful number, since it uses less digits than its factorization.

3641663225451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213887741820.

The product of its digits is 3110400, while the sum is 48.

The spelling of 3641663225451 in words is "three trillion, six hundred forty-one billion, six hundred sixty-three million, two hundred twenty-five thousand, four hundred fifty-one".