1601169804 has 72 divisors (see below), whose sum is σ = 4363500960. Its totient is φ = 492129792.

The previous prime is 1601169799. The next prime is 1601169811. The reversal of 1601169804 is 4089611061.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 751012 + ... + 753140.

It is an arithmetic number, because the mean of its divisors is an integer number (60604180).

Almost surely, 2^1601169804 is an apocalyptic number.

It is an amenable number.

1601169804 is an abundant number, since it is smaller than the sum of its proper divisors (2762331156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1601169804 is a wasteful number, since it uses less digits than its factorization.

1601169804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3759 (or 3754 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1601169804 is about 40014.6198782395. The cubic root of 1601169804 is about 1169.8920698160.

It can be divided in two parts, 1601 and 169804, that added together give a triangular number (171405 = T₅₈₅).

The spelling of 1601169804 in words is "one billion, six hundred one million, one hundred sixty-nine thousand, eight hundred four".