5540165400 has 576 divisors, whose sum is σ = 22432135680. Its totient is φ = 1117670400.

The previous prime is 5540165357. The next prime is 5540165413. The reversal of 5540165400 is 45610455.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11965569 + ... + 11966031.

It is an arithmetic number, because the mean of its divisors is an integer number (38944680).

Almost surely, 2^5540165400 is an apocalyptic number.

5540165400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5540165400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11216067840).

5540165400 is an abundant number, since it is smaller than the sum of its proper divisors (16891970280).

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

5540165400 is a wasteful number, since it uses less digits than its factorization.

5540165400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 5540165400 is about 74432.2873489724. The cubic root of 5540165400 is about 1769.4606547196.

Adding to 5540165400 its reverse (45610455), we get a palindrome (5585775855).

Subtracting from 5540165400 its reverse (45610455), we obtain a palindrome (5494554945).

The spelling of 5540165400 in words is "five billion, five hundred forty million, one hundred sixty-five thousand, four hundred".