1605616356101 has 16 divisors (see below), whose sum is σ = 1685885819904. Its totient is φ = 1526236677504.

The previous prime is 1605616356061. The next prime is 1605616356107. The reversal of 1605616356101 is 1016536165061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1605616356101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605616356107) 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, 3704945 + ... + 4115561.

It is an arithmetic number, because the mean of its divisors is an integer number (105367863744).

Almost surely, 2^{1605616356101} is an apocalyptic number.

It is an amenable number.

1605616356101 is a deficient number, since it is larger than the sum of its proper divisors (80269463803).

1605616356101 is a wasteful number, since it uses less digits than its factorization.

1605616356101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411700.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 1605616356101 in words is "one trillion, six hundred five billion, six hundred sixteen million, three hundred fifty-six thousand, one hundred one".