1354553516661 has 16 divisors (see below), whose sum is σ = 1864380185088. Its totient is φ = 873882777600.

The previous prime is 1354553516653. The next prime is 1354553516677. The reversal of 1354553516661 is 1666153554531.

It is not a de Polignac number, because 1354553516661 - 2³ = 1354553516653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354553516681) 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, 3873921 + ... + 4209081.

It is an arithmetic number, because the mean of its divisors is an integer number (116523761568).

Almost surely, 2^{1354553516661} is an apocalyptic number.

It is an amenable number.

1354553516661 is a deficient number, since it is larger than the sum of its proper divisors (509826668427).

1354553516661 is a wasteful number, since it uses less digits than its factorization.

1354553516661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378652.

The product of its digits is 4860000, while the sum is 51.

The spelling of 1354553516661 in words is "one trillion, three hundred fifty-four billion, five hundred fifty-three million, five hundred sixteen thousand, six hundred sixty-one".