1550666130 has 64 divisors (see below), whose sum is σ = 4047660288. Its totient is φ = 377913600.

The previous prime is 1550666123. The next prime is 1550666179. The reversal of 1550666130 is 316660551.

It is a junction number, because it is equal to n+sod(n) for n = 1550666091 and 1550666100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19707 + ... + 59073.

It is an arithmetic number, because the mean of its divisors is an integer number (63244692).

Almost surely, 2^1550666130 is an apocalyptic number.

1550666130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550666130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2023830144).

1550666130 is an abundant number, since it is smaller than the sum of its proper divisors (2496994158).

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

1550666130 is a wasteful number, since it uses less digits than its factorization.

1550666130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39491.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 1550666130 is about 39378.4983207841. The cubic root of 1550666130 is about 1157.4602903155.

The spelling of 1550666130 in words is "one billion, five hundred fifty million, six hundred sixty-six thousand, one hundred thirty".