1121328476640 has 576 divisors, whose sum is σ = 4126108896000. Its totient is φ = 287346216960.

The previous prime is 1121328476603. The next prime is 1121328476687. The reversal of 1121328476640 is 466748231211.

1121328476640 is a `hidden beast` number, since 1 + 1 + 2 + 132 + 8 + 476 + 6 + 40 = 666.

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

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, 106798111 + ... + 106808609.

It is an arithmetic number, because the mean of its divisors is an integer number (7163383500).

Almost surely, 2^{1121328476640} is an apocalyptic number.

1121328476640 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 1121328476640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063054448000).

1121328476640 is an abundant number, since it is smaller than the sum of its proper divisors (3004780419360).

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

1121328476640 is a wasteful number, since it uses less digits than its factorization.

1121328476640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10637 (or 10617 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 1121328476640 in words is "one trillion, one hundred twenty-one billion, three hundred twenty-eight million, four hundred seventy-six thousand, six hundred forty".