11901660120 has 384 divisors, whose sum is σ = 46279434240. Its totient is φ = 2595317760.

The previous prime is 11901660107. The next prime is 11901660131. The reversal of 11901660120 is 2106610911.

It is a super-2 number, since 2×11901660120² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5701717 + ... + 5703803.

It is an arithmetic number, because the mean of its divisors is an integer number (120519360).

Almost surely, 2^11901660120 is an apocalyptic number.

11901660120 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 11901660120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23139717120).

11901660120 is an abundant number, since it is smaller than the sum of its proper divisors (34377774120).

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

11901660120 is a wasteful number, since it uses less digits than its factorization.

11901660120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 11901660120 in words is "eleven billion, nine hundred one million, six hundred sixty thousand, one hundred twenty".