1601004407773 has 8 divisors (see below), whose sum is σ = 1696135126392. Its totient is φ = 1505979687936.

The previous prime is 1601004407771. The next prime is 1601004407791. The reversal of 1601004407773 is 3777044001061.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 103959170329 + 1497045237444 = 322427^2 + 1223538^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1601004407773 - 2¹ = 1601004407771 is a prime.

It is a super-2 number, since 2×1601004407773² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601004407771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26468590 + ... + 26529007.

It is an arithmetic number, because the mean of its divisors is an integer number (212016890799).

Almost surely, 2^{1601004407773} is an apocalyptic number.

It is an amenable number.

1601004407773 is a deficient number, since it is larger than the sum of its proper divisors (95130718619).

1601004407773 is a wasteful number, since it uses less digits than its factorization.

1601004407773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52999391.

The product of its (nonzero) digits is 98784, while the sum is 40.

The spelling of 1601004407773 in words is "one trillion, six hundred one billion, four million, four hundred seven thousand, seven hundred seventy-three".