3543465051561 has 16 divisors (see below), whose sum is σ = 4821629304128. Its totient is φ = 2314195012800.

The previous prime is 3543465051559. The next prime is 3543465051683. The reversal of 3543465051561 is 1651505643453.

It is not a de Polignac number, because 3543465051561 - 2¹ = 3543465051559 is a prime.

It is a super-2 number, since 2×3543465051561² (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 3543465051561.

It is not an unprimeable number, because it can be changed into a prime (3543465051541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48663010 + ... + 48735771.

It is an arithmetic number, because the mean of its divisors is an integer number (301351831508).

Almost surely, 2^{3543465051561} is an apocalyptic number.

It is an amenable number.

3543465051561 is a deficient number, since it is larger than the sum of its proper divisors (1278164252567).

3543465051561 is a wasteful number, since it uses less digits than its factorization.

3543465051561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97399032.

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 3543465051561 in words is "three trillion, five hundred forty-three billion, four hundred sixty-five million, fifty-one thousand, five hundred sixty-one".