1081351177920 has 252 divisors, whose sum is σ = 4027515070176. Its totient is φ = 266178631680.

The previous prime is 1081351177913. The next prime is 1081351177939. The reversal of 1081351177920 is 297711531801.

1081351177920 is a `hidden beast` number, since 108 + 1 + 3 + 511 + 7 + 7 + 9 + 20 = 666.

1081351177920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1081351177920³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 624136 + ... + 1597575.

Almost surely, 2^{1081351177920} is an apocalyptic number.

1081351177920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081351177920 is an abundant number, since it is smaller than the sum of its proper divisors (2946163892256).

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

1081351177920 is a wasteful number, since it uses less digits than its factorization.

1081351177920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221760 (or 2221734 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 45.

The spelling of 1081351177920 in words is "one trillion, eighty-one billion, three hundred fifty-one million, one hundred seventy-seven thousand, nine hundred twenty".