3661456354547 has 2 divisors, whose sum is σ = 3661456354548. Its totient is φ = 3661456354546.

The previous prime is 3661456354463. The next prime is 3661456354601. The reversal of 3661456354547 is 7454536541663.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3661456354547 is a prime.

It is not a weakly prime, because it can be changed into another prime (3661456353547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830728177273 + 1830728177274.

It is an arithmetic number, because the mean of its divisors is an integer number (1830728177274).

Almost surely, 2^{3661456354547} is an apocalyptic number.

3661456354547 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661456354547 is an equidigital number, since it uses as much as digits as its factorization.

3661456354547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864000, while the sum is 59.

The spelling of 3661456354547 in words is "three trillion, six hundred sixty-one billion, four hundred fifty-six million, three hundred fifty-four thousand, five hundred forty-seven".