1601633061 has 48 divisors (see below), whose sum is σ = 2827601280. Its totient is φ = 892866240.

The previous prime is 1601633041. The next prime is 1601633069. The reversal of 1601633061 is 1603361061.

It is a happy number.

It is not a de Polignac number, because 1601633061 - 2⁷ = 1601632933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601633069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39480 + ... + 69006.

It is an arithmetic number, because the mean of its divisors is an integer number (58908360).

Almost surely, 2^1601633061 is an apocalyptic number.

It is an amenable number.

1601633061 is a deficient number, since it is larger than the sum of its proper divisors (1225968219).

1601633061 is a wasteful number, since it uses less digits than its factorization.

1601633061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29591 (or 29578 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 1601633061 is about 40020.4080563904. The cubic root of 1601633061 is about 1170.0048849237.

Subtracting 1601633061 from its reverse (1603361061), we obtain a cube (1728000 = 120³).

The spelling of 1601633061 in words is "one billion, six hundred one million, six hundred thirty-three thousand, sixty-one".