2155446604 has 12 divisors (see below), whose sum is σ = 3776688328. Its totient is φ = 1076392800.

The previous prime is 2155446599. The next prime is 2155446607. The reversal of 2155446604 is 4066445512.

It is a super-3 number, since 3×2155446604³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2155446607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328977 + ... + 335464.

Almost surely, 2^2155446604 is an apocalyptic number.

It is an amenable number.

2155446604 is a deficient number, since it is larger than the sum of its proper divisors (1621241724).

2155446604 is a wasteful number, since it uses less digits than its factorization.

2155446604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665256 (or 665254 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 2155446604 is about 46426.7875692471. The cubic root of 2155446604 is about 1291.7518421936.

The spelling of 2155446604 in words is "two billion, one hundred fifty-five million, four hundred forty-six thousand, six hundred four".