5546191590 has 48 divisors (see below), whose sum is σ = 14809839408. Its totient is φ = 1439011008.

The previous prime is 5546191559. The next prime is 5546191661. The reversal of 5546191590 is 951916455.

It is a happy number.

5546191590 is a `hidden beast` number, since 5 + 5 + 46 + 19 + 1 + 590 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 829432 + ... + 836091.

It is an arithmetic number, because the mean of its divisors is an integer number (308538321).

Almost surely, 2^5546191590 is an apocalyptic number.

5546191590 is an abundant number, since it is smaller than the sum of its proper divisors (9263647818).

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

5546191590 is a wasteful number, since it uses less digits than its factorization.

5546191590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665573 (or 1665570 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The square root of 5546191590 is about 74472.7573680470. The cubic root of 5546191590 is about 1770.1019858884.

It can be divided in two parts, 5546 and 191590, that added together give a square (197136 = 444²).

The spelling of 5546191590 in words is "five billion, five hundred forty-six million, one hundred ninety-one thousand, five hundred ninety".