1801651101120 has 448 divisors, whose sum is σ = 6886796528640. Its totient is φ = 440758112256.

The previous prime is 1801651101077. The next prime is 1801651101157. The reversal of 1801651101120 is 211011561081.

1801651101120 is a `hidden beast` number, since 1 + 8 + 0 + 1 + 651 + 1 + 0 + 1 + 1 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18258957 + ... + 18357363.

It is an arithmetic number, because the mean of its divisors is an integer number (15372313680).

Almost surely, 2^{1801651101120} is an apocalyptic number.

1801651101120 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 1801651101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3443398264320).

1801651101120 is an abundant number, since it is smaller than the sum of its proper divisors (5085145427520).

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

1801651101120 is a wasteful number, since it uses less digits than its factorization.

1801651101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98609 (or 98593 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 27.

The spelling of 1801651101120 in words is "one trillion, eight hundred one billion, six hundred fifty-one million, one hundred one thousand, one hundred twenty".