1550816064 has 224 divisors, whose sum is σ = 5391302400. Its totient is φ = 427714560.

The previous prime is 1550816063. The next prime is 1550816087. The reversal of 1550816064 is 4606180551.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550816063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 348574 + ... + 352994.

Almost surely, 2^1550816064 is an apocalyptic number.

1550816064 is a gapful number since it is divisible by the number (14) 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 1550816064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2695651200).

1550816064 is an abundant number, since it is smaller than the sum of its proper divisors (3840486336).

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

1550816064 is a wasteful number, since it uses less digits than its factorization.

1550816064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478 (or 4462 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1550816064 is about 39380.4020294359. The cubic root of 1550816064 is about 1157.4975940812.

The spelling of 1550816064 in words is "one billion, five hundred fifty million, eight hundred sixteen thousand, sixty-four".