1654372161 has 64 divisors (see below), whose sum is σ = 2790144000. Its totient is φ = 960413760.

The previous prime is 1654372147. The next prime is 1654372169. The reversal of 1654372161 is 1612734561.

1654372161 is a `hidden beast` number, since 1 + 6 + 5 + 437 + 216 + 1 = 666.

It is not a de Polignac number, because 1654372161 - 2¹⁰ = 1654371137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1654372169) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2393826 + ... + 2394516.

It is an arithmetic number, because the mean of its divisors is an integer number (43596000).

Almost surely, 2^1654372161 is an apocalyptic number.

It is an amenable number.

1654372161 is a deficient number, since it is larger than the sum of its proper divisors (1135771839).

1654372161 is a wasteful number, since it uses less digits than its factorization.

1654372161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1085 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1654372161 is about 40673.9740005817. The cubic root of 1654372161 is about 1182.7085537577.

The spelling of 1654372161 in words is "one billion, six hundred fifty-four million, three hundred seventy-two thousand, one hundred sixty-one".