12251611680 has 1152 divisors, whose sum is σ = 54186983424. Its totient is φ = 2256076800.

The previous prime is 12251611667. The next prime is 12251611693. The reversal of 12251611680 is 8611615221.

It is an interprime number because it is at equal distance from previous prime (12251611667) and next prime (12251611693).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 331124622 + ... + 331124658.

It is an arithmetic number, because the mean of its divisors is an integer number (47037312).

Almost surely, 2^12251611680 is an apocalyptic number.

12251611680 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 12251611680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27093491712).

12251611680 is an abundant number, since it is smaller than the sum of its proper divisors (41935371744).

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

12251611680 is a wasteful number, since it uses less digits than its factorization.

12251611680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The spelling of 12251611680 in words is "twelve billion, two hundred fifty-one million, six hundred eleven thousand, six hundred eighty".