1613555243401 has 16 divisors (see below), whose sum is σ = 1746764392000. Its totient is φ = 1485287368128.

The previous prime is 1613555243387. The next prime is 1613555243407. The reversal of 1613555243401 is 1043425553161.

It is a cyclic number.

It is not a de Polignac number, because 1613555243401 - 2³⁵ = 1579195505033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1613555243407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1050351 + ... + 2080948.

It is an arithmetic number, because the mean of its divisors is an integer number (109172774500).

Almost surely, 2^{1613555243401} is an apocalyptic number.

It is an amenable number.

1613555243401 is a deficient number, since it is larger than the sum of its proper divisors (133209148599).

1613555243401 is a wasteful number, since it uses less digits than its factorization.

1613555243401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132088.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 1613555243401 in words is "one trillion, six hundred thirteen billion, five hundred fifty-five million, two hundred forty-three thousand, four hundred one".