55651611000 has 128 divisors (see below), whose sum is σ = 175584801600. Its totient is φ = 14673612800.

The previous prime is 55651610999. The next prime is 55651611023. The reversal of 55651611000 is 11615655.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162784 + ... + 371216.

Almost surely, 2^55651611000 is an apocalyptic number.

55651611000 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 55651611000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87792400800).

55651611000 is an abundant number, since it is smaller than the sum of its proper divisors (119933190600).

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

55651611000 is a wasteful number, since it uses less digits than its factorization.

55651611000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208546 (or 208532 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 55651611000 in words is "fifty-five billion, six hundred fifty-one million, six hundred eleven thousand".