1611361204 has 12 divisors (see below), whose sum is σ = 2822196384. Its totient is φ = 805019384.

The previous prime is 1611361159. The next prime is 1611361217. The reversal of 1611361204 is 4021631161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159802 + ... + 169585.

It is an arithmetic number, because the mean of its divisors is an integer number (235183032).

Almost surely, 2^1611361204 is an apocalyptic number.

It is an amenable number.

1611361204 is a deficient number, since it is larger than the sum of its proper divisors (1210835180).

1611361204 is a wasteful number, since it uses less digits than its factorization.

1611361204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330614 (or 330612 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1611361204 is about 40141.7638376791. The cubic root of 1611361204 is about 1172.3689320260.

Adding to 1611361204 its reverse (4021631161), we get a palindrome (5632992365).

The spelling of 1611361204 in words is "one billion, six hundred eleven million, three hundred sixty-one thousand, two hundred four".