1626325560 has 128 divisors (see below), whose sum is σ = 5513184000. Its totient is φ = 426319488.

The previous prime is 1626325543. The next prime is 1626325573. The reversal of 1626325560 is 655236261.

It is a happy number.

1626325560 is a `hidden beast` number, since 1 + 62 + 6 + 32 + 5 + 560 = 666.

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

It is a congruent number.

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, 50959 + ... + 76481.

It is an arithmetic number, because the mean of its divisors is an integer number (43071750).

Almost surely, 2^1626325560 is an apocalyptic number.

1626325560 is a gapful number since it is divisible by the number (10) 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 1626325560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2756592000).

1626325560 is an abundant number, since it is smaller than the sum of its proper divisors (3886858440).

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

1626325560 is a wasteful number, since it uses less digits than its factorization.

1626325560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25602 (or 25592 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 1626325560 is about 40327.7269381749. The cubic root of 1626325560 is about 1175.9869323829.

The spelling of 1626325560 in words is "one billion, six hundred twenty-six million, three hundred twenty-five thousand, five hundred sixty".