55167640000 has 280 divisors, whose sum is σ = 157112208000. Its totient is φ = 19002240000.

The previous prime is 55167639979. The next prime is 55167640051. The reversal of 55167640000 is 4676155.

It is a happy number.

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 39 ways as a sum of consecutive naturals, for example, 8356701 + ... + 8363299.

Almost surely, 2^55167640000 is an apocalyptic number.

55167640000 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 55167640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78556104000).

55167640000 is an abundant number, since it is smaller than the sum of its proper divisors (101944568000).

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

55167640000 is a wasteful number, since it uses less digits than its factorization.

55167640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6661 (or 6636 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 55167640000 in words is "fifty-five billion, one hundred sixty-seven million, six hundred forty thousand".