1901601606043 has 4 divisors (see below), whose sum is σ = 1902812047848. Its totient is φ = 1900391164240.

The previous prime is 1901601606019. The next prime is 1901601606049. The reversal of 1901601606043 is 3406061061091.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1901601606043 - 2⁵ = 1901601606011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1901601605993 and 1901601606011.

It is not an unprimeable number, because it can be changed into a prime (1901601606049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605218546 + ... + 605221687.

It is an arithmetic number, because the mean of its divisors is an integer number (475703011962).

Almost surely, 2^{1901601606043} is an apocalyptic number.

1901601606043 is a deficient number, since it is larger than the sum of its proper divisors (1210441805).

1901601606043 is a wasteful number, since it uses less digits than its factorization.

1901601606043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210441804.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 1901601606043 in words is "one trillion, nine hundred one billion, six hundred one million, six hundred six thousand, forty-three".