1604220224061 has 128 divisors (see below), whose sum is σ = 2865717743616. Its totient is φ = 774081515520.

The previous prime is 1604220223999. The next prime is 1604220224077.

1604220224061 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1604220224061 - 2¹⁸ = 1604219961917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604220224561) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 187338966 + ... + 187347528.

It is an arithmetic number, because the mean of its divisors is an integer number (22388419872).

Almost surely, 2^{1604220224061} is an apocalyptic number.

It is an amenable number.

1604220224061 is a deficient number, since it is larger than the sum of its proper divisors (1261497519555).

1604220224061 is a wasteful number, since it uses less digits than its factorization.

1604220224061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9731.

The product of its (nonzero) digits is 9216, while the sum is 30.

It can be divided in two parts, 1604220 and 224061, that added together give a palindrome (1828281).

The spelling of 1604220224061 in words is "one trillion, six hundred four billion, two hundred twenty million, two hundred twenty-four thousand, sixty-one".